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CVE record · CVE-2026-20500

Improper certificate validation in MediaTek, Inc. MediaTek chipset

CVSS 5.0 MediumEPSS 0.0012 · 2nd percentile

Published by the CVE Program (CNA: MediaTek) at 7 Sept 2026, 01:57 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 MT6835
  • affected MT6858
  • affected MT6878
  • affected MT6881
  • affected MT6897
  • affected MT6899
  • affected MT6982VB
  • affected MT6986
  • affected MT6988
  • affected MT6991
  • affected MT6993
  • and 10 more
Other versions: unaffected
Identifiers
CVE-2026-20500
CNA
MediaTek
Weakness (CWE)
CWE-295
Tags
Published
7 Sept 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
5.0 Medium 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0012, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 7 Sept 2026, 01:57 UTC Confirmed by the CVE List
  2. 7 Sept 2026, 02:17 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.