CVE-2025-69809 Memory corruption in n/a

Critical 9.8 Published 16 Mar 2026 Updated 16 Mar 2026

Unauthenticated attackers can achieve arbitrary code execution via a crafted packet exploiting a write-what-where memory corruption flaw.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-69809?

CVE-2025-69809 is a critical memory corruption vulnerability in n/a, published on 16 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A write-what-where condition in p2r3 Bareiron commit 8e4d40 allows unauthenticated attackers to write arbitrary values to memory, enabling arbitrary code execution via a crafted packet.

Weakness: CWE-123

Which versions are affected by CVE-2025-69809?

It affects 1 product.

Products include P2r3 Bareiron.

How do I fix CVE-2025-69809?

No fix has been published for CVE-2025-69809 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-2025-69809 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69809 exists.

Sources

Also known as GHSA-pvfh-qxvg-vg95.