CVE-2025-20646
Published: 03 March 2025
Description
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.
Security Summary
CVE-2025-20646 is a high-severity vulnerability (CVSS 9.8, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) involving an out-of-bounds write due to improper input validation (CWE-787) in WLAN Access Point Firmware. Published on March 3, 2025, it affects MediaTek's WLAN AP firmware components, as detailed in the vendor's product security bulletin.
The vulnerability enables remote escalation of privilege without requiring additional execution privileges or user interaction. A network-accessible attacker can exploit it with low complexity over the network, potentially achieving high confidentiality, integrity, and availability impacts by writing outside allocated memory bounds.
MediaTek's March 2025 Product Security Bulletin provides mitigation guidance, including Patch ID WCNCR00389074 for remediation. Security practitioners should review the advisory at https://corp.mediatek.com/product-security-bulletin/March-2025 and apply the specified patch to vulnerable WLAN AP firmware deployments, with Issue ID MSV-1803 for tracking.
Details
- CWE(s)