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VulnerabilityPublished

CVE-2026-20561: 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 – MT8893
72 affected builds
Fixed in–

AI-suggested

A patch identified as MOLY01750090 addresses this vulnerability. Users and device manufacturers should apply this official fix to affected chipsets to remediate the issue. Until patched, devices remain vulnerable when connecting to rogue base stations.

Description

CVE-2026-20561 is an out-of-bounds write vulnerability in MediaTek chipsets' modem component caused by a missing bounds check. Exploitation can lead to remote denial of service without requiring user interaction or additional privileges, triggered when a device connects to a rogue base station controlled by an attacker.

References

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