OpenHarmony <6.0 Local DOS via Missing Memory Release
CVE-2026-0639 Published on March 16, 2026
liteos_a has a missing release of memory vulnerability
in OpenHarmony v6.0 and prior versions allow a local attacker case DOS through missing release of memory.
Vulnerability Analysis
CVE-2026-0639 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is a Memory Leak Vulnerability?
The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.
CVE-2026-0639 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2026-0639
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Affected Versions
OpenHarmony:- Version v5.0.3, <= v6.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.