CVE-2020-37095 Cyberoam Authentication Client 2.1.2.7 - Buffer Overflow (SEH)
Remote attackers can execute arbitrary code with system-level access via a buffer overflow in the Cyberoam Authentication Client.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-37095?
CVE-2020-37095 is a high-severity memory corruption vulnerability in Cyberoam Authentication Client, published on 6 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-121
Which versions are affected by CVE-2020-37095?
How do I fix CVE-2020-37095?
No fix has been published for CVE-2020-37095 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-37095 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37095 exists.
Sources
Also known as GHSA-3rq8-jjh5-j8v3.