CVE-2026-20430
HIGHMediaTek Software Development Kit < 7.6.7.3 - Out-of-bounds Write
Title source: llmDescription
In wlan AP FW, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00467553; Issue ID: MSV-5151.
References (1)
Core 1
Core References
Various Sources
https://corp.mediatek.com/product-security-bulletin/March-2026
Scores
CVSS v3
8.8
EPSS
0.0002
EPSS Percentile
6.9%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (14)
mediatek/software_development_kit
< 7.6.7.3
MediaTek, Inc./MediaTek chipset
MT6890
MediaTek, Inc./MediaTek chipset
MT7915
MediaTek, Inc./MediaTek chipset
MT7916
MediaTek, Inc./MediaTek chipset
MT7981
MediaTek, Inc./MediaTek chipset
MT7986
MediaTek, Inc./MT6890
WCNCR00467553
MediaTek, Inc./MT7915
WCNCR00467553
MediaTek, Inc./MT7916
WCNCR00467553
MediaTek, Inc./MT7981
WCNCR00467553
... and 4 more
Published
Mar 02, 2026
Tracked Since
Mar 02, 2026