CVE-2025-7208 9fans plan9port x509.c edump heap-based overflow
A heap-based buffer overflow in the x509.c library allows attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7208?
CVE-2025-7208 is a medium-severity memory corruption vulnerability in 9fans plan9port, published on 9 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in 9fans plan9port up to 9da5b44. It has been classified as critical. This affects the function edump in the library /src/plan9port/src/libsec/port/x509.c. The manipulation leads to heap-based buffer overflow. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is b3e06559475b0130a7a2fb56ac4d131d13d2012f. It is recommended to apply a patch to fix this issue.
Which versions are affected by CVE-2025-7208?
It affects 1 product.
Products include 9fans Plan9port.
How do I fix CVE-2025-7208?
No fix has been published for CVE-2025-7208 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-2025-7208 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7208 exists.
Other vulnerabilities in 9fans plan9port
Sources
Also known as GHSA-2ff5-v85j-347q.