Microsoft imgsys Local DS via Improper Locking
CVE-2026-20415 Published on February 2, 2026
In imgsys, there is a possible memory corruption due to improper locking. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10363254; Issue ID: MSV-5617.
Vulnerability Analysis
CVE-2026-20415 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 high impact on availability.
Weakness Type
What is a Double-free Vulnerability?
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
CVE-2026-20415 has been classified to as a Double-free vulnerability or weakness.
Products Associated with CVE-2026-20415
stack.watch emails you whenever new vulnerabilities are published in MediaTek Mt6989 or MediaTek Mt6897. Just hit a watch button to start following.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6897 is affected.
- Version MT6989 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.