# CVE-2026-20581: CVE-2026-20581

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

In usb, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11411985; Issue ID: MSV-9750.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- MediaTek, Inc. / MediaTek chipset: MT6858 (affected); MT6881 (affected); MT6993 (affected); MT8188 (affected); MT8189 (affected); MT8518S (affected); MT8532 (affected); MT8668 (affected). Source: CNA: MediaTek

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-416

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.mediatek.com/product-security-bulletin/November-2026 (CNA: MediaTek)

## Provenance

- CNA: MediaTek: https://www.cve.org/CVERecord?id=CVE-2026-20581; retrieved 2026-11-02; source updated 2026-11-02

Revision: 7a1190c408f5fd49d751efea48a4a313e57c858f1b5fdc3146b6c9c8e265fff5

Canonical: https://y2.dev/cve/CVE-2026-20581