Cyberoam Authentication Client 2.1.2.7 - Buffer Overflow (SEH)
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Cyberoam Authentication Client 2.1.2.7 contains a buffer overflow vulnerability that allows remote attackers to execute arbitrary code by overwriting Structured Exception Handler (SEH) memory. Attackers can craft a malicious input in the 'Cyberoam Server Address' field to trigger a bind TCP shell on port 1337 with system-level access.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-37095
- 2026-10-03 Alias added: GHSA-3rq8-jjh5-j8v3
References
Exploit 1
More Cyberoam vulnerabilities
- TI-2014-04471 SQL injection vulnerability in the Guest Login Portal in the Sophos Cyberoam appliances… CVSS 2.0HIGH 10.0
- TI-2014-04469 Stack-based buffer overflow in the diagnose service in the Sophos Cyberoam appliances… CVSS 2.0HIGH 9.3
- TI-2014-04470 The Sophos Cyberoam appliances with CyberoamOS before 10.6.1 GA allows remote… CVSS 2.0HIGH 9.0
- TI-2012-00955 Directory traversal vulnerability in the WWWHELP Service (js/html/wwhelp.htm) in Cyberoam… CVSS 2.0HIGH 7.5
- TI-2015-05712 SQL injection vulnerability in the Sophos Cyberoam CR500iNG-XP firewall appliance with… CVSS 2.0HIGH 7.5
Sources
- CVE-2020-37095 · CVE Program
- CVE-2020-37095 · NVD
- FIRST EPSS
- GHSA-3rq8-jjh5-j8v3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences