Android Runtime Use-After-Free Vulnerability
Google — Android
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.
8.8
0.5%
Vector breakdown
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Published
- Sep 4, 2025
- Modified
- Feb 26, 2026
- Added to KEV
- Sep 4, 2025
- Federal patch due
- Sep 25, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-48543, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-48543 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2025-48543?
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.
How severe is CVE-2025-48543?
CVE-2025-48543 has a CVSS base score of 8.8 out of 10 (CVSS 3.1).
Is CVE-2025-48543 actively exploited in the wild?
Yes. CVE-2025-48543 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Sep 4, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-48543?
0.5% - meaning FIRST.org's EPSS model estimates a 0.5% probability this vulnerability will be exploited in the wild within 30 days (43% percentile among all scored CVEs).
What type of vulnerability is CVE-2025-48543?
CVE-2025-48543 is classified under CWE-416 (CWE-416 Use After Free).
Cross-checked against
Impactr finds and proves whether CVE-2025-48543 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.