CVE-2026-20577: MediaTek chipset · Improper Handling of Insufficient Permissions or Privileges
Affects MediaTek chipsetSource CVE Database V5
Not known to be exploited.
Data as of 2 Nov 2026, 02:58 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
Patch ID MOLY01880753 is referenced, indicating a fix likely exists. Users should apply the official patch from MediaTek corresponding to this Patch ID when available. Until then, ensure that only trusted parties have System-level access to affected devices to reduce risk.
Description
CVE-2026-20577 is a vulnerability in MediaTek chipsets that involves improper handling of insufficient permissions, leading to a permissions bypass in the modem component. Exploitation does not require user interaction but requires the attacker to already have System privileges. Successful exploitation could cause a local denial of service. Multiple MediaTek chipset models are affected.