CVE-2026-58097 ppp(8): missing length validation in mp_SetEnddisc()

High 7.8 Published 26 Aug 2026 Updated 27 Aug 2026

A local attacker can trigger a buffer overflow in the PPP daemon to crash the service or execute arbitrary code with root privileges.

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-2026-58097?

CVE-2026-58097 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp(8) command interface.

A local user with access to the ppp(8) command interface can crash ppp(8) or potentially execute arbitrary code as root.

Weakness: CWE-130, CWE-122

Which versions are affected by CVE-2026-58097?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2026-58097?

No fix has been published for CVE-2026-58097 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-2026-58097 being exploited?

There is no known exploitation of CVE-2026-58097 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-8qxx-j2rw-6vhr.