CVE-2026-20419 — MediaTek, Inc. / MediaTek chipset

Description (CNA)

In wlan AP/STA firmware, there is a possible system becoming irresponsive due to an uncaught exception. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461663 / WCNCR00463309; Issue ID: MSV-4852.

Affected (CNA)

Vendor / product	Versions
MediaTek, Inc. / MediaTek chipset	affected MT6890; affected MT6989TB; affected MT7902; affected MT7915; affected MT7916; affected MT7920; affected MT7921; affected MT7922; affected MT7925; affected MT7927; affected MT7981; affected MT7986; affected MT8196; affected MT8668; affected MT8676; affected MT8678; affected MT8775; affected MT8791T; affected MT8792; affected MT8793; affected MT8796; affected MT8873; affected MT8883; affected MT8893; affected MT8910

Vendor / product

Versions

MediaTek, Inc. / MediaTek chipset

affected MT6890; affected MT6989TB; affected MT7902; affected MT7915; affected MT7916; affected MT7920; affected MT7921; affected MT7922; affected MT7925; affected MT7927; affected MT7981; affected MT7986; affected MT8196; affected MT8668; affected MT8676; affected MT8678; affected MT8775; affected MT8791T; affected MT8792; affected MT8793; affected MT8796; affected MT8873; affected MT8883; affected MT8893; affected MT8910

CWE

CWE-754

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.