CVE-2026-56879 Privilege escalation in Android
A confused deputy vulnerability in Android's gmc_mb_msg_handler allows local attackers with System privileges to escalate privileges via memory corruption.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-56879?
CVE-2026-56879 is a medium-severity vulnerability in Google Android, published on 15 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In gmc_mb_msg_handler of gmc_mba.c, there is a possible memory corruption due to a confused deputy. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Weakness: CWE-441
Which versions are affected by CVE-2026-56879?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2026-56879?
Apply the vendor's patch.
Is CVE-2026-56879 being exploited?
There is no known exploitation of CVE-2026-56879 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-508718430, GHSA-ffj5-38p8-49hw, PUB-A-508718430.