CVE-2026-20516 Privilege escalation in MediaTek chipset
A confused deputy vulnerability in MediaTek MiracastService allows local attackers to escalate privileges and cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20516?
CVE-2026-20516 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 MiracastService, there is a possible escalation of privilege due to a confused deputy. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11060069 / DTV04881615; Issue ID: MSV-7882.
Weakness: CWE-926
Which versions are affected by CVE-2026-20516?
How do I fix CVE-2026-20516?
No fix has been published for CVE-2026-20516 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20516 being exploited?
There is no known exploitation of CVE-2026-20516 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-r6mc-p7fv-v7wh.