OOB Write in WLAN AP Firmware Enables Remote Priv Escalation
CVE-2025-20646 Published on March 3, 2025
In wlan AP FW, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00389074; Issue ID: MSV-1803.
Vulnerability Analysis
CVE-2025-20646 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2025-20646 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2025-20646
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Affected Versions
MediaTek, Inc. MT6890, MT7915, MT7916, MT7981, MT7986 Version SDK release 7.6.7.2 and before is affected by CVE-2025-20646Exploit 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.