In MediaCodec.cpp, there is a possible use after free due to improper locking.
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-667 and the CVSS impact.
Summary
In MediaCodec.cpp, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-194783918
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Android | Android-13 | — | No fix listed | CNA |
- Android Vendor— Affected Android-13 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-21000
- 2026-10-03 Alias added: GHSA-5j77-g9mw-c64c
References
More Google Android vulnerabilities
- TI-2026-42236 Improper authorization in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30821 Use after free in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2023-17777 Improper privilege management in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30872 Integer overflow in Google Android KEVCVSS 3.1HIGH 8.4
- TI-2024-21766 there is a possible way to bypass due to a logic error in the code. KEVCVSS 3.1HIGH 8.1
- TI-2025-30849 Missing authentication in Google Android KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2023-21000 · CVE Program
- CVE-2023-21000 · NVD
- FIRST EPSS
- GHSA-5j77-g9mw-c64c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences