Security readout for executives and security teams
Plain-English summary
CVE-2020-37095 affects Cyberoam Authentication Client 2.1.2.7. A specially crafted server address value can crash the client and potentially run attacker-controlled code. The public sources rate it critical because successful exploitation could allow full confidentiality, integrity, and availability impact on an affected endpoint.
Executive priority
High priority if the client exists in your environment. The issue has critical impact and public exploit information, but exposure may be narrow because it targets a specific legacy client version. Direct teams to find, remove, or update affected installations promptly.
Technical view
The vulnerability is a CWE-121 stack buffer overflow in Cyberoam Authentication Client 2.1.2.7. Sources describe Structured Exception Handler overwrite through the Cyberoam Server Address field, enabling arbitrary code execution. The provided CVSS 3.1 score is 9.8, with network attack vector, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is limited to systems running Cyberoam Authentication Client 2.1.2.7. The referenced product page appears archived, suggesting legacy installations are the main concern. Organizations should prioritize endpoint and software-inventory checks rather than assuming broad exposure.
Exploitation context
A public ExploitDB entry and VulnCheck advisory exist, so exploit knowledge is public. The source bundle says the CVE is not in KEV, and no cited source confirms active exploitation in the wild. Treat this as public-exploit risk, not confirmed active exploitation.
Researcher notes
The available evidence identifies one affected version: Cyberoam Authentication Client 2.1.2.7. No patch details are included in the provided sources. Avoid assuming other Cyberoam products are affected without additional vendor evidence.
Mitigation direction
- Inventory endpoints for Cyberoam Authentication Client 2.1.2.7.
- Remove the affected client where it is no longer required.
- Check official vendor guidance for an updated client or migration path.
- Restrict affected systems to trusted networks until remediated.
- Monitor affected endpoints for crashes or suspicious post-crash behavior.
Validation and detection
- Confirm installed product name and version on endpoints.
- Review vulnerability scanner and software inventory results for version 2.1.2.7.
- Check EDR logs for Cyberoam client crashes or abnormal process behavior.
- Verify whether remediation removed or replaced the affected version.
- Recheck CVE and VulnCheck records for updated remediation information.
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-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-37095 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
- 9.8 (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:H
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.
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:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48148CVE reference · exploit
- Archived Cyberoam Authentication Client SoftwareCVE reference · product
- VulnCheck Advisory: Cyberoam Authentication Client 2.1.2.7 - Buffer Overflow (SEH)CVE reference · third-party-advisory
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.