CVE-2023-21163
CRITICALCVSS 9.8/10EPSS 0.41%
Last modified
CVE-2023-21163 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In PMR_ReadBytes of pmr.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
In PMR_ReadBytes of pmr.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Android | All versions |
References
- https://source.android.com/security/bulletin/2023-12-01Vendor Advisory
- https://source.android.com/security/bulletin/2023-12-01Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-21163?
In PMR_ReadBytes of pmr.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.
How severe is CVE-2023-21163?
CVE-2023-21163 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2023-21163?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-21163?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST