CVE-2024-36331 — Improper initialization of CPU cache memory could allow a privileged attacker wi

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity.

01What is this vulnerability?

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity.

02Affected products

Vendor	Product	Versions
AMD	AMD EPYC™ 9004 Series Processors	GenoaPI_1.0.0.F
AMD	EPYC™ Embedded 9004 Series Processors	EmbGenoaPI-1.0.0.A
AMD	AMD EPYC™ Embedded 9004 Series Processors	EmbGenoaPI-1.0.0.A

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-09-06T17:29:38.215Z
• Last modified: 2025-11-03T17:31:10.979Z

09References

• www.amd.com — https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
• www.amd.com — https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html