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CVE record · CVE-2026-20526

Out-of-bounds write in MediaTek, Inc. MediaTek chipset

CVSS 7.1 HighEPSS 0.0021 · 11th percentile

Published by the CVE Program (CNA: MediaTek) at 5 Oct 2026, 01:39 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
VendorProductVersions
MediaTek, Inc. MediaTek chipset
  • affected MT2716
  • affected MT2735
  • affected MT2737
  • affected MT6813
  • affected MT6815
  • affected MT6833
  • affected MT6835
  • affected MT6853
  • affected MT6855
  • affected MT6858
  • affected MT6873
  • affected MT6875
  • and 43 more
Other versions: unaffected
Identifiers
CVE-2026-20526
CNA
MediaTek
Weakness (CWE)
CWE-787
Tags
Published
5 Oct 2026
Updated
2 Nov 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

ScoreRatingCVSSVectorSource
7.1 High 3.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0021, the 11th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 5 Oct 2026, 01:39 UTC Confirmed by the CVE List
  2. 5 Oct 2026, 02:16 UTC Confirmed by NVD

Sources

References from the CNA

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.