CVE-2025-48543 Android Runtime Use-After-Free
A use-after-free flaw in Android allows local attackers to escape the Chrome sandbox and escalate privileges to system_server without user interaction.
- Exploited in the wild
- Since 4 Sep 2025
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-48543?
CVE-2025-48543 is a high-severity use after free vulnerability in Google Android, published on 4 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In multiple locations, there is a possible way to escape chrome sandbox to attack android system_server due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Weakness: CWE-416
Which versions are affected by CVE-2025-48543?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2025-48543?
Apply the vendor's patch. US federal agencies must fix it by 25 Sep 2025.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-48543 being exploited?
Yes. Attackers have exploited CVE-2025-48543 in the wild since at least 4 Sep 2025.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Google Android
Sources
Also known as A-421834866, ASB-A-421834866, GHSA-98cr-q848-h9x3.