Use After Free in Mediatek, Inc. Mediatek Chipset

CVE-2026-20531

In apu, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249016; Issue ID: MSV-9169.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20531?
CVE-2026-20531 is a high-severity vulnerability in Mediatek, Inc. Mediatek Chipset, classified under Use After Free. CVSS score: 8.4/10. Published 2026-10-05.
How severe is CVE-2026-20531?
High severity. CVSS v3 base score is 8.4 out of 10.