How severe is CVE-2024-36343?

CVE-2024-36343 has a CVSS 4.0 base score of 4.6, rated medium severity.

Is CVE-2024-36343 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-36343?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-36343 have an EU (EUVD) identifier?

Yes. CVE-2024-36343 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55591.

When was CVE-2024-36343 published?

CVE-2024-36343 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2024-36343

CVE-2024-36343 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-124.

Key facts

Severity: Medium (CVSS 4.0 base score 4.6)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-55591
Weakness: CWE-124
Published: 2026-05-19
Last modified: 2026-06-17

Description

Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.

Frequently asked questions

What is CVE-2024-36343?: Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.
How severe is CVE-2024-36343?: CVE-2024-36343 has a CVSS 4.0 base score of 4.6, rated medium severity.
Is CVE-2024-36343 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-36343?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-36343 have an EU (EUVD) identifier?: Yes. CVE-2024-36343 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55591.
When was CVE-2024-36343 published?: CVE-2024-36343 was published on 2026-05-19 and last updated on 2026-06-17.

References

Other CWE-124 vulnerabilities

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