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VulnerabilityPublished

CVE-2026-20567: 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, 02:59 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
  • MT6739 – MT8793
40 affected builds
Fixed in–

AI-suggested

A patch is available as identified by Patch ID ALPS11431394. Users and vendors should apply this official fix to affected MediaTek chipset versions to remediate the vulnerability.

Description

CVE-2026-20567 is an out-of-bounds write vulnerability in the MediaTek chipset's afe component caused by a missing bounds check. Exploitation does not require user interaction but requires the attacker to already have System privilege. This flaw could lead to local escalation of privilege. A patch is identified by Patch ID ALPS11431394.

References

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