CVE-2024-36311

CVE-2024-36311 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Description

A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.

Frequently asked questions

What is CVE-2024-36311?
A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.
How severe is CVE-2024-36311?
CVE-2024-36311 has a CVSS 4.0 base score of 4.6, rated medium severity.
Is CVE-2024-36311 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-36311?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-36311 have an EU (EUVD) identifier?
Yes. CVE-2024-36311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55411.
When was CVE-2024-36311 published?
CVE-2024-36311 was published on 2026-02-10 and last updated on 2026-06-17.

References

Other CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition) vulnerabilities

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