3.3

CVE-2023-20519: amd 3rd gen amd epyc™ processors Use After Free

Modified
Published 14-11-2023Last modified 30-08-2024

Vulnerability summary

CVE-2023-20519 is a low (CVSS 3.3) Use After Free vulnerability in amd 3rd gen amd epyc™ processors. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 3.3, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.3/10
010
Low · v3.1 (NVD)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
SUSE-SU-2023:4654-1SUSE-SU-2023:4655-1SUSE-SU-2023:4660-1SUSE-SU-2023:4664-1SUSE-SU-2023:4665-1SUSE-SU-2024:2376-1

Timeline

  1. 14-11-2023
    PublishedVulnerability first disclosed.
  2. 30-08-2024
    Last modifiedVulnerability information updated.

Description

A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Amd4 products

1 vendor · 4 products

References

1 links