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VulnerabilityPublished

CVE-2026-20572: MediaTek chipset · Integer Underflow

Affects MediaTek chipsetSource CVE Database V5

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Not known to be exploited.

Data as of 2 Nov 2026, 02:58 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
  • MT6858 – MT8793
21 affected builds
Fixed in–

AI-suggested

The provided data includes a patch ID (ALPS11431442), but no explicit confirmation of patch availability or fixed versions. Users and administrators should monitor MediaTek advisories for updates and apply official fixes once available. No additional mitigation steps are specified.

Description

CVE-2026-20572 is an integer underflow vulnerability in MediaTek chipsets affecting multiple models. The flaw exists in the adsp component and can cause an out-of-bounds write due to an integer overflow. Exploitation requires the attacker to already have System privilege and does not require user interaction. This vulnerability could lead to local privilege escalation.

References

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