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3.2 Low

CVE-2024-21977 Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the…

Description

Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.

Affected products and versions

Product Affected versions Fixed in
AMD EPYC™ 7003 Series Processors Versions not published
AMD EPYC™ 9004 Series Processors Versions not published
AMD EPYC™ 8004 Series Processors Versions not published
AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors Versions not published
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics Versions not published
AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics Versions not published
AMD Ryzen™ 5000 Series Desktop Processors Versions not published
AMD Ryzen™ 7000 Series Desktop Processors Versions not published
AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Versions not published
Show the 11 other branches
Product Affected versions Fixed in
AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics Versions not published
AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics Versions not published
AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors Versions not published
AMD Ryzen™ 7030 Series Mobile processors with Radeon™ Graphics Versions not published
AMD Ryzen™ 8000 Series Desktop Processors Versions not published
AMD EPYC™ Embedded 7003 Series Processors Versions not published
AMD EPYC™ Embedded 9004 Series Processors Versions not published
AMD Ryzen™ Embedded 8000 Series Processors Versions not published
AMD Ryzen™ Embedded 7000 Series Processors Versions not published
AMD Ryzen™ Embedded 5000 Series Processors Versions not published
AMD Ryzen™ Embedded V3000 Series Processors Versions not published

Other CVEs of AMD EPYC™ 7003 Series Processors

The 26 CVEs of AMD EPYC™ 7003 Series Processors →
CVE-2024-21944 Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access,… 5.3 Medium CVE-2026-0432 Incorrect default permissions in the installation directory for the AMD chipset driver could allow an attacker to… 8.5 High CVE-2025-48512 Incorrect default permissions in the installation directory for the AMD general-purpose input/output controller (GPIO)… 7.0 High CVE-2025-61971 Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing… 5.9 Medium
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