Vulnerability · Published Nov 2, 2026 · Assigned by MediaTek
CVE-2026-20591
High 8.4
In plain English
A high-severity use-after-free in MediaTek chipset from MediaTek, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)8.4High
Exploit odds (30 days)0.1%top 97.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In GPU pdma, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365075; Issue ID: MSV-9546.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MediaTek, Inc. | MediaTek chipset | MT6993MT8910 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H