Known exploited vulnerability
CVE-2025-48543
The short answer
CVE-2025-48543 affects Google Android and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-09-04: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
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.
Severity
8.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Sep 4, 2025
Federal due date Sep 25, 2025
EPSS, next 30 days
0.66%
Higher than 52% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
Android. NVD's record lists the exact affected versions.
References
- android.googlesource.com/platform/art/+/444fc40dfb04d2ec5f74c443ed3a4dd45d3131f2 PatchProduct
- source.android.com/security/bulletin/2025-09-01 Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48543 Third Party AdvisoryUS Government Resource
Questions
Is CVE-2025-48543 being exploited?
Yes. CISA added CVE-2025-48543 to its Known Exploited Vulnerabilities catalog on 2025-09-04, with a federal remediation due date of 2025-09-25.
How do I fix CVE-2025-48543?
CISA's 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.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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