CVE-2026-20574: MediaTek afe use-after-free memory corruption

CVE-2026-20574 · Severity: info · Published 2026-11-02

MediaTek's afe component, used in smartphone and IoT chipsets, contains a use-after-free memory corruption vulnerability. An attacker who already has System privilege could exploit this to escalate privileges further. No user interaction is required for exploitation, but the attacker must already have System-level access to the device.

Technologies: MediaTek Afe. Vendors: MediaTek.

Quick answers

Is CVE-2026-20574 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-20574 being exploited in the wild.
How severe is CVE-2026-20574?
Informational severity, published 2 November 2026.
Which products and versions are affected?
MediaTek afe.
Is there a fix for CVE-2026-20574?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-20574 attacked?
It is attacked with local access, in device firmware.
Am I affected by CVE-2026-20574?
Check whether you run MediaTek Afe. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free in the MediaTek afe component allows memory corruption leading to local privilege escalation. The vulnerability requires that an attacker has already obtained System privilege on the target device; exploitation does not require user interaction. A patch is available per Patch ID ALPS11431400.

Affected products

  • MediaTek afe

Timeline

  • 2026-11-02: disclosed

References

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