Medium · CVSS 6.5
Microhard Systems IPn4G 1.1.0 contains a cross-site request forgery vulnerability that allows attackers to perform administrative actions without user consent. Attackers can craft malicious web pages to change admin passwords, add new users, and modify system settings by tricking authenticated users into loading a specially crafted page.
Published Dec 24, 2025 · Updated Jan 26, 2026
Medium · CVSS 6.1
MyBB Thread Redirect Plugin 0.2.1 contains a cross-site scripting vulnerability in the custom text input field for thread redirects. Attackers can inject malicious SVG scripts that will execute when other users view the thread, allowing arbitrary script execution.
Published Jan 23, 2026 · Updated Jan 23, 2026
Medium · CVSS 6.1
MyBB Trending Widget Plugin 1.2 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts through thread titles. Attackers can modify thread titles with script payloads that will execute when other users view the trending widget.
Published Jan 23, 2026 · Updated Jan 23, 2026
Critical · CVSS 9.8 · CISA KEV
A vulnerability in the web interface of the Cisco RV132W ADSL2+ Wireless-N VPN and RV134W VDSL2 Wireless-AC VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system, including issuing commands with root privileges. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to an incomplete input validation on user-controlled input in an HTTP request to the targeted device. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to execute arbitrary code as the root user and gain full control of the affected system or cause it to reload, resulting in a DoS condition. This vulnerability is fixed in firmware version 1.0.1.11 for the following Cisco products: RV132W ADSL2+ Wireless-N VPN Router and RV134W VDSL2 Wireless-AC VPN Router. Cisco Bug IDs: CSCvg92737, CSCvh60170.
Published Feb 8, 2018 · Updated Jan 14, 2026
Critical · CVSS 9.8 · CISA KEV
A vulnerability in Java deserialization used by Cisco Secure Access Control System (ACS) prior to release 5.8 patch 9 could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object. An exploit could allow the attacker to execute arbitrary commands on the device with root privileges. Cisco Bug IDs: CSCvh25988.
Published Mar 8, 2018 · Updated Jan 12, 2026
Medium · CVSS 6.8 · CISA KEV
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599.
Published Mar 28, 2018 · Updated Jan 12, 2026
Medium · CVSS 6.8 · CISA KEV
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8 · CISA KEV
Format String vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCvd73664.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.6 · CISA KEV
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuh91645.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.6 · CISA KEV
A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of encapsulated option 82 information that it receives in DHCPOFFER messages from DHCPv4 servers. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device, which the device would then forward to a DHCPv4 server. When the affected software processes the option 82 information that is encapsulated in the response from the server, an error could occur. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvg62754.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.6 · CISA KEV
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.8 · CISA KEV
Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCuo17183, CSCvd73487.
Published Mar 28, 2018 · Updated Jan 12, 2026
Medium · CVSS 6.3 · CISA KEV
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition, aka a GET MIB Object ID Denial of Service Vulnerability. The vulnerability is due to a condition that could occur when the affected software processes an SNMP read request that contains a request for the ciscoFlashMIB object ID (OID). An attacker could trigger this vulnerability by issuing an SNMP GET request for the ciscoFlashMIB OID on an affected device. A successful exploit could cause the affected device to restart due to a SYS-3-CPUHOG. This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS Software and are configured to use SNMP Version 2 (SNMPv2) or SNMP Version 3 (SNMPv3): Cisco Catalyst 2960-L Series Switches, Cisco Catalyst Digital Building Series Switches 8P, Cisco Catalyst Digital Building Series Switches 8U. Cisco Bug IDs: CSCvd89541.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 7.5 · CISA KEV
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.6 · CISA KEV
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 7.5 · CISA KEV
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 8.6 · CISA KEV
A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 7.5 · CISA KEV
A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient handling of VPN traffic by the affected device. An attacker could exploit this vulnerability by sending crafted VPN traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to hang or crash, resulting in a DoS condition. Cisco Bug IDs: CSCvd39267.
Published Mar 28, 2018 · Updated Jan 12, 2026
Critical · CVSS 9.8 · CISA KEV
A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 7.5 · CISA KEV
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition, or to execute arbitrary code on an affected device. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted Smart Install message to an affected device on TCP port 4786. A successful exploit could allow the attacker to cause a buffer overflow on the affected device, which could have the following impacts: Triggering a reload of the device, Allowing the attacker to execute arbitrary code on the device, Causing an indefinite loop on the affected device that triggers a watchdog crash. Cisco Bug IDs: CSCvg76186.
Published Mar 28, 2018 · Updated Jan 12, 2026
High · CVSS 7.5 · CISA KEV
A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. It is also possible on certain software releases that the ASA will not reload, but an attacker could view sensitive system information without authentication by using directory traversal techniques. The vulnerability is due to lack of proper input validation of the HTTP URL. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. An exploit could allow the attacker to cause a DoS condition or unauthenticated disclosure of information. This vulnerability applies to IPv4 and IPv6 HTTP traffic. This vulnerability affects Cisco ASA Software and Cisco Firepower Threat Defense (FTD) Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 1000V Cloud Firewall, ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4100 Series Security Appliance, Firepower 9300 ASA Security Module, FTD Virtual (FTDv). Cisco Bug IDs: CSCvi16029.
Published Jun 7, 2018 · Updated Jan 12, 2026
Critical · CVSS 9.8
FLIR AX8 Thermal Camera 1.32.16 contains hard-coded SSH and web panel credentials that cannot be changed through normal camera operations. Attackers can exploit these persistent credentials to gain unauthorized shell access and login to multiple camera interfaces using predefined username and password combinations.
Published Dec 24, 2025 · Updated Jan 5, 2026
Medium · CVSS 5.3
SOCA Access Control System 180612 contains a cross-site request forgery vulnerability that allows attackers to perform administrative actions without proper request validation. Attackers can craft malicious web pages that submit forged requests to create admin accounts by tricking logged-in users into visiting a malicious site.
Published Dec 24, 2025 · Updated Dec 24, 2025
Critical · CVSS 9.3
SOCA Access Control System 180612 contains multiple SQL injection vulnerabilities that allow attackers to manipulate database queries through unvalidated POST parameters. Attackers can bypass authentication, retrieve password hashes, and gain administrative access with full system privileges by exploiting injection flaws in Login.php and Card_Edit_GetJson.php.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 7.5
SOCA Access Control System 180612 contains multiple insecure direct object reference vulnerabilities that allow attackers to access sensitive user credentials. Attackers can retrieve authenticated and unauthenticated user password hashes and pins through unprotected endpoints like Get_Permissions_From_DB.php and Ac10_ReadSortCard.
Published Dec 24, 2025 · Updated Dec 24, 2025
Medium · CVSS 6.8
Beward Intercom 2.3.1 contains a credentials disclosure vulnerability that allows local attackers to access plain-text authentication credentials stored in an unencrypted database file. Attackers can read the BEWARD.INTERCOM.FDB file to extract usernames and passwords, enabling unauthorized access to IP cameras and door stations.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 7.2
Leica Geosystems GR10/GR25/GR30/GR50 GNSS 4.30.063 contains a stored cross-site scripting vulnerability in the configuration file upload functionality. Attackers can upload a malicious HTML file to that executes arbitrary JavaScript in a user's browser session when viewed.
Published Dec 24, 2025 · Updated Dec 24, 2025
Medium · CVSS 5.1
Synaccess netBooter NP-0801DU 7.4 contains a cross-site request forgery vulnerability that allows attackers to perform administrative actions without proper request validation. Attackers can craft malicious web pages with hidden form submissions to add admin users by tricking authenticated administrators into loading a malicious page.
Published Dec 24, 2025 · Updated Dec 24, 2025
Critical · CVSS 9.8
Synaccess netBooter NP-02x/NP-08x 6.8 contains an authentication bypass vulnerability in the webNewAcct.cgi script that allows unauthenticated attackers to create admin user accounts. Attackers can exploit the missing control check by sending crafted POST requests to create administrative accounts and gain unauthorized control over power supply management.
Published Dec 24, 2025 · Updated Dec 24, 2025
Critical · CVSS 9.8
Anviz AIM CrossChex Standard 4.3.6.0 contains a CSV injection vulnerability that allows attackers to execute commands by inserting malicious formulas in user import fields. Attackers can craft payloads in fields like 'Name', 'Gender', or 'Position' to trigger Excel macro execution when importing user data.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 8.7
FLIR Brickstream 3D+ 2.1.742.1842 contains an unauthenticated vulnerability that allows remote attackers to access live video streams without credentials. Attackers can retrieve video stream images by directly accessing multiple image endpoints like middleImage.jpg, rightimage.jpg, and leftimage.jpg.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 8.7
FLIR Brickstream 3D+ 2.1.742.1842 contains an unauthenticated vulnerability in the ExportConfig REST API that allows attackers to download sensitive configuration files. Attackers can exploit the getConfigExportFile.cgi endpoint to retrieve system configurations, potentially enabling authentication bypass and privilege escalation.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 8.7
FLIR AX8 Thermal Camera 1.32.16 contains an unauthenticated vulnerability that allows remote attackers to access live video streams without credentials. Attackers can directly connect to the RTSP stream using tools like VLC or FFmpeg to view and record thermal camera footage.
Published Dec 24, 2025 · Updated Dec 24, 2025
Critical · CVSS 9.3
FLIR thermal traffic cameras contain an unauthenticated device manipulation vulnerability in their WebSocket implementation that allows attackers to bypass authentication and authorization controls. Attackers can directly modify device configurations, access system information, and potentially initiate denial of service by sending crafted WebSocket messages without authentication.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 8.8
Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.
Published Dec 24, 2025 · Updated Dec 24, 2025
High · CVSS 8.8
Microhard Systems IPn4G 1.1.0 contains multiple authenticated remote code execution vulnerabilities in the admin interface that allow attackers to create crontab jobs and modify system startup scripts. Attackers can exploit hidden admin features to execute arbitrary commands with root privileges, including starting services, disabling firewalls, and writing files to the system.
Published Dec 24, 2025 · Updated Dec 24, 2025
Medium · CVSS 5.1
Ecessa WANWorx WVR-30 versions before 10.7.4 contain a cross-site request forgery vulnerability that allows attackers to perform administrative actions without request validation. Attackers can craft a malicious web page with a hidden form to create a new superuser account by tricking an authenticated administrator into loading the page.
Published Dec 24, 2025 · Updated Dec 24, 2025
Medium · CVSS 5.3
Ecessa Edge EV150 10.7.4 contains a cross-site request forgery vulnerability that allows attackers to create administrative user accounts without authentication. Attackers can craft a malicious web page with a form that submits requests to the /cgi-bin/pl_web.cgi/util_configlogin_act endpoint to add superuser accounts with arbitrary credentials.
Published Dec 24, 2025 · Updated Dec 24, 2025
Medium · CVSS 6.1
An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146.
Published Dec 2, 2018 · Updated Dec 18, 2025
Medium · CVSS 5.3
Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'
Published Aug 28, 2018 · Updated Dec 18, 2025
High · CVSS 7.3
procps-ng before version 3.3.15 is vulnerable to multiple integer overflows leading to a heap corruption in file2strvec function. This allows a privilege escalation for a local attacker who can create entries in procfs by starting processes, which could result in crashes or arbitrary code execution in proc utilities run by other users.
Published May 23, 2018 · Updated Dec 18, 2025
High · CVSS 7.5
procps-ng before version 3.3.15 is vulnerable to a stack buffer overflow in pgrep. This vulnerability is mitigated by FORTIFY, as it involves strncat() to a stack-allocated string. When pgrep is compiled with FORTIFY (as on Red Hat Enterprise Linux and Fedora), the impact is limited to a crash.
Published May 23, 2018 · Updated Dec 17, 2025
Medium · CVSS 5.3
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
Published Jan 10, 2019 · Updated Dec 17, 2025
High · CVSS 7.5
The RSVP parser in tcpdump before 4.9.3 has a buffer over-read in print-rsvp.c:rsvp_obj_print().
Published Oct 3, 2019 · Updated Dec 17, 2025
Medium · CVSS 5.9
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
Published Aug 17, 2018 · Updated Dec 17, 2025
Low · CVSS 3.9
procps-ng before version 3.3.15 is vulnerable to a denial of service in ps via mmap buffer overflow. Inbuilt protection in ps maps a guard page at the end of the overflowed buffer, ensuring that the impact of this flaw is limited to a crash (temporary denial of service).
Published May 23, 2018 · Updated Dec 17, 2025
Medium · CVSS 4.8
procps-ng before version 3.3.15 is vulnerable to an incorrect integer size in proc/alloc.* leading to truncation/integer overflow issues. This flaw is related to CVE-2018-1124.
Published May 23, 2018 · Updated Dec 17, 2025
Critical · CVSS 9.8 · CISA KEV
A remote code execution vulnerability exists within multiple subsystems of Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being compromised. This vulnerability is related to Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-002. Both SA-CORE-2018-002 and this vulnerability are being exploited in the wild.
Published Jul 19, 2018 · Updated Dec 17, 2025
Critical · CVSS 9.8
Improper input validation together with an integer overflow in the EAP-TLS protocol implementation in PPPD may cause a crash, information disclosure, or authentication bypass. This implementation is distributed as a patch for PPPD 0.91, and includes the affected eap.c and eap-tls.c files. Configurations that use the `refuse-app` option are unaffected.
Published Jun 14, 2018 · Updated Dec 3, 2025
Medium · CVSS 6.5
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
Published Jul 19, 2018 · Updated Dec 3, 2025