7.2

CVE-2024-56161: amd64-microcode

CVSS: 7.2v3.1HighDeferred
AliasesMGASA-2025-0124UBUNTU-CVE-2024-56161USN-7560-1
Published 03-02-2025Last modified 02-04-2025
Open JSON

Vulnerability summary

CVE-2024-56161 is a high (CVSS 7.2) vulnerability in amd64-microcode. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.8% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:11242-1USN-7561-1

Timeline

  1. 03-02-2025
    PublishedVulnerability first disclosed.
  2. 02-04-2025
    Last modifiedVulnerability information updated.

Description

Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • amd64-microcode< 3.20250311.1~deb12u1 | < 3.20250311.1 | < 3.20250311.1~deb11u1
Mageia1 product
  • microcode< 0.20250211-2.mga9.nonfree
Ubuntu1 product
  • amd64-microcode< 3.20250311.1ubuntu0.24.04.1 | < 3.20250311.1ubuntu0.25.04.1

3 vendors · 3 products

References

15 links
Show all 15 references