CVE-2025-54620 Deserialization in HarmonyOS
Attackers can cause denial of service in HarmonyOS via deserialization of untrusted data in the ability module.
- 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-2025-54620?
CVE-2025-54620 is a medium-severity unsafe deserialization 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
Deserialization vulnerability of untrusted data in the ability module. Impact: Successful exploitation of this vulnerability may affect availability.
Weakness: CWE-502
Which versions are affected by CVE-2025-54620?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2025-54620?
No fix has been published for CVE-2025-54620 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-54620 being exploited?
There is no known exploitation of CVE-2025-54620 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-8m79-hv2w-xjvh.