CVE record · CVE-2026-20535

Missing authorization in MediaTek, Inc. MediaTek chipset

CVSS 6.7 MediumEPSS 0.0011 · 1st percentile

Published by the CVE Program (CNA: MediaTek) at 5 Oct 2026, 01:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
MediaTek, Inc.	MediaTek chipset	affected MT6878 affected MT6881 affected MT6899 affected MT6989 affected MT6991 affected MT6993 affected MT8188 affected MT8189 affected MT8668 affected MT8781 affected MT8793 affected MT8910 Other versions: unaffected

Identifiers: CVE-2026-20535
CNA: MediaTek
Weakness (CWE): CWE-862
Tags: MediaTek, Inc. MediaTek chipset
Broken access control
Published: 5 Oct 2026
Updated: 6 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.7	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Not listed.
EPSS 0.0011, the 1st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 5 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

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

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.