What is CVE-2024-21978?

CVE-2024-21978 is a medium-severity vulnerability in Amd 3rd Gen Epyc™ Processors, classified under Improper Input Validation. CVSS score: 6.0/10. Published 2024-08-05.

How severe is CVE-2024-21978?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Is CVE-2024-21978 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Amd 3rd Gen Epyc™ Processors

CVE-2024-21978

Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.016 (82.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Amd 3rd Gen Epyc™ Processors — versions various
Amd 4th Gen Epyc™ Processors — versions various
Amd Epyc™ Embedded 7003 — versions various
Amd Epyc™ Embedded 9003 — versions various

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3011.html (vendor-advisory)

Frequently asked questions

What is CVE-2024-21978?: CVE-2024-21978 is a medium-severity vulnerability in Amd 3rd Gen Epyc™ Processors, classified under Improper Input Validation. CVSS score: 6.0/10. Published 2024-08-05.
How severe is CVE-2024-21978?: Medium severity. CVSS v3 base score is 6.0 out of 10.
Is CVE-2024-21978 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.