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CVE-2025-48543 Android CVE debrief

CVE-2025-48543 is an Android Runtime use-after-free vulnerability that CISA added to the Known Exploited Vulnerabilities catalog on 2025-09-04. Because it is on the KEV list, this issue should be treated as a high-priority remediation item, with the CISA due date set for 2025-09-25. The supplied record does not include a CVSS score, affected versions, or vendor fix details, so defenders should rely on the official Android and CISA guidance referenced in the source materials.

Vendor
Android
Product
Runtime
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2025-09-04
Original CVE updated
2025-09-04
Advisory published
2025-09-04
Advisory updated
2025-09-04

Who should care

Android platform maintainers, device OEMs, mobile fleet administrators, MDM and endpoint security teams, and any organization responsible for deploying Android updates.

Technical summary

The supplied record identifies CVE-2025-48543 as a use-after-free vulnerability in Android Runtime. CISA’s KEV entry indicates the issue is known to be exploited in the wild or otherwise confirmed as actively relevant for defenders, and it assigns a remediation due date of 2025-09-25. No further technical details, affected component breakdown, or exploit mechanics are provided in the supplied corpus.

Defensive priority

Urgent. Prioritize patching or vendor-provided mitigations immediately, and confirm remediation before the CISA KEV due date of 2025-09-25.

Recommended defensive actions

  • Review the Android security bulletin referenced by CISA in the source notes and apply the vendor’s recommended mitigations or updates.
  • Prioritize deployment across managed Android fleets, especially devices that receive delayed OEM or carrier updates.
  • Track remediation status against the CISA KEV due date of 2025-09-25.
  • If a device cannot be updated or mitigated promptly, follow the vendor guidance and CISA remediation guidance for unsupported or unpatchable assets.
  • Verify exposure across all Android endpoints, including employee-owned devices enrolled in mobile management programs.

Evidence notes

The supplied source item is the CISA KEV record for CVE-2025-48543. It identifies the vulnerability as 'Android Runtime Use-After-Free Vulnerability,' marks it as a KEV entry, and sets dateAdded to 2025-09-04 with dueDate 2025-09-25. The KEV notes reference an Android security bulletin dated 2025-09-01 and the NVD detail page. No CVSS score or vendor patch advisory text was included in the supplied corpus.

Official resources

Publicly listed by CISA in the Known Exploited Vulnerabilities catalog on 2025-09-04. The supplied CVE record is also dated 2025-09-04 for publication and modification. This debrief uses only the supplied record and official links; it does