How severe is CVE-2024-36056?

CVE-2024-36056 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-36056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-36056?

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

Does CVE-2024-36056 have an EU (EUVD) identifier?

Yes. CVE-2024-36056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35860.

When was CVE-2024-36056 published?

CVE-2024-36056 was published on 2024-05-26 and last updated on 2026-06-17.

CVE-2024-36056

CVE-2024-36056 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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-269.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-35860
Weakness: CWE-269
Published: 2024-05-26
Last modified: 2026-06-17

Description

Hw64.sys in Marvin Test HW.exe before 5.0.5.0 allows unprivileged user-mode processes to arbitrarily map physical memory via IOCTL 0x9c406490 (for IoAllocateMdl, MmBuildMdlForNonPagedPool, and MmMapLockedPages), leading to NT AUTHORITY\SYSTEM privilege escalation.

Frequently asked questions

What is CVE-2024-36056?: Hw64.sys in Marvin Test HW.exe before 5.0.5.0 allows unprivileged user-mode processes to arbitrarily map physical memory via IOCTL 0x9c406490 (for IoAllocateMdl, MmBuildMdlForNonPagedPool, and MmMapLockedPages), leading to NT AUTHORITY\SYSTEM privilege escalation.
How severe is CVE-2024-36056?: CVE-2024-36056 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-36056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-36056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-36056 have an EU (EUVD) identifier?: Yes. CVE-2024-36056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35860.
When was CVE-2024-36056 published?: CVE-2024-36056 was published on 2024-05-26 and last updated on 2026-06-17.

References

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