CVE-2026-81646 Memory corruption in HarmonyOS
An out-of-bounds read in the graphics module allows attackers to cause a denial of service on HarmonyOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81646?
CVE-2026-81646 is a medium-severity memory corruption vulnerability in Huawei HarmonyOS, published on 9 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds read vulnerability in the graphics module. Impact: Successful exploitation of this vulnerability may affect availability.
Weakness: CWE-125
Which versions are affected by CVE-2026-81646?
How do I fix CVE-2026-81646?
No fix has been published for CVE-2026-81646 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-2026-81646 being exploited?
There is no known exploitation of CVE-2026-81646 in the wild and no public exploit code.
Sources
Also known as GHSA-qhv2-v2xw-566p.