CVE-2026-20430

EUVD-2026-9158
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
8.8 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
Affected Products (NVD)
VendorProductVersion
mediateksoftware_development_kit
𝑥
≤ 7.6.7.3
openwrtopenwrt
19.07.0
openwrtopenwrt
21.02.0
openwrtopenwrt
23.05.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://corp.mediatek.com/product-security-bulletin/March-2026