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CVE-2023-31346: amd 3rd gen amd epyc™ processors Improper Access Control

CVSS: 6.0v3.1MediumModified
AliasesRHSA-2024:4262RHSA-2024:4409RHSA-2024:4733
Published 13-02-2024Last modified 20-03-2025

Vulnerability summary

CVE-2023-31346 is a medium (CVSS 6.0) Improper Access Control vulnerability in amd 3rd gen amd epyc™ processors. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.0/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.31%
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 1

Timeline

  1. 13-02-2024
    PublishedVulnerability first disclosed.
  2. 20-03-2025
    Last modifiedVulnerability information updated.

Description

Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.31%

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

Amd64 products
Redhat23 products
  • iwl100-firmware< 0:39.31.5.1-122.el8_10.1 | < 0:39.31.5.1-114.1.el8_6.1 | < 0:39.31.5.1-106.1.el8_4.1 | < 0:39.31.5.1-118.1.el8_8.1 | < 0:39.31.5.1-143.1.el9_4 | < 0:39.31.5.1-138.1.el9_2
  • iwl1000-firmware< 1:39.31.5.1-122.el8_10.1 | < 1:39.31.5.1-114.1.el8_6.1 | < 1:39.31.5.1-106.1.el8_4.1 | < 1:39.31.5.1-118.1.el8_8.1 | < 1:39.31.5.1-143.1.el9_4 | < 1:39.31.5.1-138.1.el9_2
  • iwl105-firmware< 0:18.168.6.1-122.el8_10.1 | < 0:18.168.6.1-114.1.el8_6.1 | < 0:18.168.6.1-106.1.el8_4.1 | < 0:18.168.6.1-118.1.el8_8.1 | < 0:18.168.6.1-143.1.el9_4 | < 0:18.168.6.1-138.1.el9_2
  • iwl135-firmware< 0:18.168.6.1-122.el8_10.1 | < 0:18.168.6.1-114.1.el8_6.1 | < 0:18.168.6.1-106.1.el8_4.1 | < 0:18.168.6.1-118.1.el8_8.1 | < 0:18.168.6.1-143.1.el9_4 | < 0:18.168.6.1-138.1.el9_2
  • iwl2000-firmware< 0:18.168.6.1-122.el8_10.1 | < 0:18.168.6.1-114.1.el8_6.1 | < 0:18.168.6.1-106.1.el8_4.1 | < 0:18.168.6.1-118.1.el8_8.1 | < 0:18.168.6.1-143.1.el9_4 | < 0:18.168.6.1-138.1.el9_2
Ubuntu1 product
  • linux-firmwareAll versions (No fix recorded)

3 vendors · 88 products

References

20 links
Show all 20 references