CVE-2026-20552: MediaTek chipset · Out-of-bounds Write
Affects MediaTek chipsetSource CVE Database V5
Not known to be exploited.
Data as of 2 Nov 2026, 03:02 UTC
Rated Medium 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
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.