VDB

CVE-2023-20585

CVE-2023-20585 PUBLISHED CVSS 5.599999904632568 MEDIUM

Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.

EPSS 0.02% · 5.4th percentile

Risk Scores

CVSS v4.0
5.599999904632568
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.02%
5.4th percentile

Affected Products

VendorProductVersions
AMDAMD EPYC™ 7003 Series ProcessorsSEV FW 1.37.23
AMDAMD EPYC™ Embedded 9004 Series ProcessorsEmbGenoaPI-1.0.0.A
AMDAMD EPYC™ 9004 Series ProcessorsSEV FW 1.37.31
AMDAMD EPYC™ Embedded 7003 Series Processors*

Timeline

  • Apr 14, 2026 CVE Published
  • Apr 14, 2026 PoC Published
  • Apr 14, 2026 PoC Published
  • Apr 15, 2026 PoC Published
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory
  • Apr 17, 2026 Security Advisory

References

…and 202 more

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