Security readout for executives and security teams
Plain-English summary
X-Serie Gateway Firmware V6_00_05 contains a remotely reachable privilege-escalation flaw in two web endpoints. An unauthenticated network attacker could gain elevated control, threatening sensitive information and system integrity. Availability impact is not claimed by the supplied CVSS data.
Executive priority
Treat as an immediate investigation and containment priority, especially for internet-facing gateways. Establish ownership, inventory affected firmware, restrict exposure, and seek vendor remediation guidance. Escalate incident review if logs show suspicious endpoint access or unexplained privileged changes.
Technical view
CVE-2026-75160 is classified as CWE-269, improper privilege management. It affects /cgi-bin/wwwugw.cgi and /cgi-bin/ugwdownload.cgi in X-Serie Gateway Firmware V6_00_05. CVSS 3.1 rates it 9.1: network-accessible, low complexity, no privileges or user interaction, with high confidentiality and integrity impact but no stated availability impact.
Likely exposure
Exposure is most likely where the gateway's web interface or affected CGI endpoints are reachable from untrusted networks. Internet-facing systems warrant immediate review. The supplied record does not identify a vendor, CPE, deployment defaults, or additional affected versions, so fleet-level exposure cannot be determined from this evidence alone.
Exploitation context
The vulnerability is remotely reachable and reportedly requires neither authentication nor user interaction. However, the supplied bundle marks it absent from KEV and provides no evidence of active exploitation. Public research is referenced, but the bundle does not establish exploit reliability, observed attacks, or required environmental conditions.
Researcher notes
The record identifies firmware V6_00_05 and two endpoints but leaves vendor/product normalization, CPEs, root cause, affected version range, prerequisites, and remediation unspecified. Avoid assuming other versions are affected or safe. Validate defensively without invoking vulnerable behavior, and consult the CVE record and referenced research for updates.
Mitigation direction
- Identify and prioritize every deployment running X-Serie Gateway Firmware V6_00_05.
- Restrict the management interface and affected CGI endpoints to trusted administrative networks.
- Block public access through firewalls, gateways, or equivalent access controls.
- Check current vendor guidance for an update or approved mitigation; none is named in the bundle.
- Monitor affected systems for suspicious access and unauthorized configuration changes.
Validation and detection
- Confirm firmware versions using trusted asset records or the device administration interface.
- Verify whether either affected CGI endpoint is reachable from untrusted network segments.
- Review access logs for unexpected requests to both named endpoints.
- Confirm management access controls deny unauthenticated and unauthorized network sources.
- After remediation, recheck firmware version, endpoint reachability, and access-control enforcement.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-75160 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://en.mbs-solutions.de/mbsCVE reference, mitre
- https://en.mbs-solutions.de/xserieCVE reference, mitre
- https://github.com/SilviaMun/vulnerability-research/tree/main/CVE-2026-75160CVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.