CVE-2023-39281
CRITICALCVSS 9.8/10EPSS 0.49%
Last modified
CVE-2023-39281 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.
Description
A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2o | 05.45.24.0039 |
| Insyde | Insydeh2o | 05.44.45.0017 |
| Insyde | Insydeh2o | 05.44.34.0055 |
| Insyde | Insydeh2o | 05.53.28.0013 |
| Insyde | Insydeh2o | 05.45.38.0005 |
| Insyde | Insydeh2o | 05.53.23.0011 |
| Insyde | Insydeh2o | 05.53.23.0014 |
| Insyde | Insydeh2o | 05.53.22.0008 |
| Insyde | Insydeh2o | 05.44.30.0022 |
| Insyde | Insydeh2o | 05.43.06.0021 |
| Insyde | Insydeh2o | 05.42.37.0031 |
References
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2023054Vendor Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2023054Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-39281?
A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.
How severe is CVE-2023-39281?
CVE-2023-39281 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.
How do I fix CVE-2023-39281?
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-2023-39281?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST