CVE-2025-54634 Denial of service in HarmonyOS
Attackers can cause denial of service in HarmonyOS by exploiting improper handling of abnormal conditions during huge page separation.
- 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-2025-54634?
CVE-2025-54634 is a high-severity denial of service 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
Vulnerability of improper processing of abnormal conditions in huge page separation. Impact: Successful exploitation of this vulnerability may affect availability.
Weakness: CWE-755
Which versions are affected by CVE-2025-54634?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2025-54634?
No fix has been published for CVE-2025-54634 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-54634 being exploited?
There is no known exploitation of CVE-2025-54634 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-x5p5-2m3r-xhg9.