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VulnerabilityPublished

CVE-2026-20555: MediaTek chipset · Out-of-bounds Read

Affects MediaTek chipsetSource CVE Database V5

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Not known to be exploited.

Data as of 2 Nov 2026, 03:02 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
MediaTek, Inc.MediaTek chipsetAffected
  • MT2716 – MT8883
25 affected builds
Fixed in–

AI-suggested

A patch is identified by Patch ID MOLY01876664; however, patch availability or vendor advisory details are not provided. Users and vendors should verify and apply the official patch once available. Until then, avoid connecting to untrusted or rogue base stations to mitigate risk.

Description

CVE-2026-20555 is an out-of-bounds read vulnerability in MediaTek chipsets' modem component caused by a missing bounds check. This flaw can be exploited remotely by an attacker controlling a rogue base station to cause a denial of service on the affected device without requiring user interaction or additional privileges. Multiple MediaTek chipset models are affected. A patch is identified but no explicit patch availability status is provided in the input.

References

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