CVE-2025-54635 Use after free in HarmonyOS
A use-after-free flaw in HarmonyOS's distributed notification service allows attackers to cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-54635?
CVE-2025-54635 is a medium-severity use after free vulnerability in Huawei Harmonyos, published on 6 Aug 2025. 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
Vulnerability of returning released pointers in the distributed notification service. Impact: Successful exploitation of this vulnerability may affect availability.
Weakness: CWE-416
Which versions are affected by CVE-2025-54635?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2025-54635?
No fix has been published for CVE-2025-54635 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-54635 being exploited?
There is no known exploitation of CVE-2025-54635 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-m5fm-v6q9-q46j.