CVE-2026-20508 Privilege escalation in MediaTek chipset
A type confusion vulnerability in the MediaTek Power HAL allows local privilege escalation for attackers with System privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20508?
CVE-2026-20508 is a medium-severity vulnerability in MediaTek, Inc. MediaTek chipset, published on 7 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Power HAL, there is a possible escalation of privilege due to type confusion. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11165543; Issue ID: MSV-9012.
Weakness: CWE-843
Which versions are affected by CVE-2026-20508?
How do I fix CVE-2026-20508?
No fix has been published for CVE-2026-20508 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20508 being exploited?
There is no known exploitation of CVE-2026-20508 in the wild and no public exploit code.
Sources
Also known as GHSA-gw7m-ccvc-2982.