CVE-2025-54621 Memory corruption in HarmonyOS
A memory release failure in the WantAgent module of HarmonyOS can lead to denial of service conditions.
- 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-2025-54621?
CVE-2025-54621 is a medium-severity memory corruption vulnerability in Huawei Harmonyos, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Iterator failure issue in the WantAgent module. Impact: Successful exploitation of this vulnerability may cause memory release failures.
Weakness: CWE-664
Which versions are affected by CVE-2025-54621?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2025-54621?
No fix has been published for CVE-2025-54621 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-2025-54621 being exploited?
There is no known exploitation of CVE-2025-54621 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-9gh5-cr2p-2mp4.