9.8

CVE-2022-23820: amd 3rd gen amd epyc™ processors Improper Input Validation

Modified
Published 14-11-2023Last modified 03-08-2024

Vulnerability summary

CVE-2022-23820 is a critical (CVSS 9.8) Improper Input Validation vulnerability in amd 3rd gen amd epyc™ processors. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 53.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.70%
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 8 · Related 8
OPENSUSE-SU-2024:13475-1OPENSUSE-SU-2025:14772-1SUSE-SU-2023:4654-1SUSE-SU-2023:4655-1SUSE-SU-2023:4660-1SUSE-SU-2023:4664-1

Timeline

  1. 14-11-2023
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.70%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.70% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Amd124 products

1 vendor · 124 products

References

3 links