CVE-2026-20567: MediaTek chipset · Out-of-bounds Write
Affects MediaTek chipsetSource CVE Database V5
Not known to be exploited.
Data as of 2 Nov 2026, 02:59 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| MediaTek, Inc.MediaTek chipset | Affected
| 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.