CVE-2026-20408

8.8 highEPSS 0.3%

High (8.8). EPSS 0.3% chance of exploitation in the next 30 days.

In wlan, there is a possible out of bounds write due to a heap buffer overflow. 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: WCNCR00461651; Issue ID: MSV-4758.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-122
Published: 2026-02-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mediatek:software_development_kit
openwrt:openwrt

References

https://corp.mediatek.com/product-security-bulletin/February-2026

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