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Description

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.

PUBLISHED Reserved 2025-11-03 | Published 2026-02-02 | Updated 2026-02-05 | Assigner MediaTek

Problem types

CWE-754 Improper Check for Unusual or Exceptional Conditions

Product status

CE/NB SDK release 3.6 and before / SDK release 7.6.7.2 and before / OpenWrt 19.07, 21.02 (MT6890)
affected

References

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

cve.org (CVE-2026-20419)

nvd.nist.gov (CVE-2026-20419)

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