CVE-2026-20548: MediaTek chipset · Out-of-bounds Write
Affects MediaTek chipsetSource CVE Database V5
Not known to be exploited.
Data as of 2 Nov 2026, 03:13 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
MediaTek has released patches identified by Patch IDs MOLY01872867 and MOLY01774038 to address this vulnerability. It is recommended to apply these official fixes as provided by MediaTek to remediate the issue.
Description
CVE-2026-20548 is an out-of-bounds write vulnerability in MediaTek chipsets caused by an integer overflow in the modem component. Exploitation can lead to remote escalation of privilege without requiring user interaction if a user equipment (UE) connects to a rogue base station controlled by an attacker. Multiple MediaTek chipset models are affected. A patch has been identified by MediaTek under Patch IDs MOLY01872867 and MOLY01774038.