[ CVE-2026-20521 · Published 5 Oct 2026 ]

Vulnerability in MediaTek, Inc. MediaTek chipset

CVSS 8.4 EPSS <1%No fix listed yet

[ Description ]Official description

In Video HAL, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11375674; Issue ID: MSV-9571.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

www.mediatek.com/product-security-bulletin/October-2026Vendor Advisory