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VulnerabilityPublished

CVE-2026-20552: MediaTek chipset · Out-of-bounds Write

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
Medium

Rated Medium 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
  • MT2735 – MT6990
9 affected builds
Fixed in–

AI-suggested

Patches have been identified for the affected chipset models under patch IDs ALPS11523478, ALPS11297423, and AUTO00864897. Applying these vendor patches is the recommended mitigation. No further action is indicated beyond patching.

Description

CVE-2026-20552 is an out-of-bounds write vulnerability in MediaTek chipsets caused by a missing bounds check in the ccci component. Exploitation requires user interaction and can lead to remote denial of service without additional execution privileges. Multiple MediaTek chipset models are affected, and patches have been identified for these issues.

References

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