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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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