CVE-2023-34440
HIGHCVSS 8.7/10EPSS 0.24%
Last modified
CVE-2023-34440 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2023-34440?
Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2023-34440?
CVE-2023-34440 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2023-34440?
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.
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Are you affected by CVE-2023-34440?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST