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CVE-2023-31345

19
FAUCET Score

CVE-2023-31345 describes an improper input validation vulnerability within the System Management Mode (SMM) handler, which could allow a highly privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a local attack vector with high complexity, requiring high privileges, and capable of impacting confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
AMDAMD Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics
Range not provided by sourceCNA affecteddefault affected
AMDAMD EPYC™ 7003 Processors
MilanPI 1.0.0.CCNA affecteddefault affected
AMDAMD EPYC™ 9004 Processors
Range not provided by sourceCNA affecteddefault affected
AMDAMD EPYC™ Embedded 7003
Range not provided by sourceCNA affecteddefault affected
AMDAMD EPYC™ Embedded 9004
Range not provided by sourceCNA affecteddefault affected

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 41st percentile among its peer group of 160 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

amd.com / en/resources/product-security/bulletin/amd-sb-3009.html
amd.com / en/resources/product-security/bulletin/amd-sb-4008.html
amd.com / en/resources/product-security/bulletin/amd-sb-5004.html