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01 Record

CVE-2024-21980

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

HighPUBLISHEDCNA: AMD
CNA base score7.9 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
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02 Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.6% of scored records. A rank, not a probability.
NVD base score
7.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-08-05 16:06Z2 YR AGO
Last updated
2024-08-05 21:00Z2 YR AGO
Reserved
2024-01-03
Assigning CNA
AMD
Record state
PUBLISHED
Severity
High (CVSS 7.9)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Weaknesses
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
15859422f55031536eaa48137f073094ddb60b1f749d72f7bf262ff5d405d69a

05 Affected products

VendorProductVersionsPlatforms
AMD3rd Gen AMD EPYC™ Processorsvarious to < MilanPI 1.0.0.D—
AMD4th Gen AMD EPYC™ Processorsvarious to < GenoaPI 1.0.0.C—
AMDAMD EPYC™ Embedded 7003various to < EmbMilanPI-SP3 1.0.0.9—
AMDAMD EPYC™ Embedded 9003various to < EmbGenoaPI-SP5 1.0.0.7—
amdepyc_7003_firmware0 to < milanpi_1.0.0.9_sp3—
amdepyc_9003_firmware0 to < genoapi_1.0.0.7_sp5—
amdepyc_7773x_firmware0 to < milanpi_1.0.0.d—
amdepyc_9754s_firmware0 to < genoapi_1.0.0.c—

06 References