CVE-2026-86313 Memory corruption in Walrus
An out-of-bounds write in Samsung Walrus allows attackers to execute arbitrary code or escalate privileges on affected devices.
- 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-2026-86313?
CVE-2026-86313 is a high-severity memory corruption vulnerability in Samsung Opensource Walrus, published on 7 Sep 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
Out-of-bounds write vulnerability in Samsung Opensource Walrus allows Overflow Buffers.
This issue affects Walrus: af80e665ea49d9003695a66502f841ed1d8397e7.
Weakness: CWE-787
Which versions are affected by CVE-2026-86313?
How do I fix CVE-2026-86313?
No fix has been published for CVE-2026-86313 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-2026-86313 being exploited?
There is no known exploitation of CVE-2026-86313 in the wild and no public exploit code.
Sources
Also known as GHSA-c8rr-65vc-ghcg.