Medium severityNVD Advisory· Published Nov 12, 2026· Updated Nov 12, 2026

CVE-2024-21963

Description

An out-of-bounds read vulnerability in the IOMMU could allow a malicious guest to corrupt hypervisor (HV) pages and potentially cause a host crash leading to loss of availability.

Affected products

AMD/IOMMUllm-fuzzy

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2026/11/10/21nvd
xenbits.xen.org/xsa/advisory-524.htmlnvd
www.amd.com/en/resources/product-security/bulletin/AMD-SB-3060.htmlnvd
www.amd.com/en/resources/product-security/bulletin/AMD-SB-4018.htmlnvd

News mentions

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