7.5

CVE-2021-46774: amd 1st gen amd epyc™ processors

Modified
Published 14-11-2023Last modified 11-10-2024

Vulnerability summary

CVE-2021-46774 is a high (CVSS 7.5) vulnerability in amd 1st gen amd epyc™ processors. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.51%
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. 11-10-2024
    Last modifiedVulnerability information updated.

Description

Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.51% 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

No weakness data has been published for this record.

Affected systems

Version check

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

Amd150 products

1 vendor · 150 products

References

3 links