synced 11 MIN AGO
01 Record

CVE-2023-31313

An unintended proxy or intermediary in the AMD power management firmware (PMFW) could allow a privileged attacker to send malformed messages to the system management unit (SMU) potentially resulting

HighPUBLISHEDCNA: AMD
CNA base score7.2 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

02 Description

An unintended proxy or intermediary in the AMD power management firmware (PMFW) could allow a privileged attacker to send malformed messages to the system management unit (SMU) potentially resulting

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.11% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 1.3% of scored records. A rank, not a probability.
NVD base score
7.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-02-12 14:16Z8 MO AGO
Last updated
2026-07-15 21:06Z3 MO AGO
Reserved
2023-04-27
Assigning CNA
AMD
Record state
PUBLISHED
Severity
High (CVSS 7.2)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
Weaknesses
  • CWE-441Unintended Proxy or Intermediary ('Confused Deputy')Class
Data version
5.2
Document digest
358714a8891dc0bd054b9d86bd6071bbd3057dc703a2bc350f99fb5e70301923

05 Affected products

VendorProductVersionsPlatforms
AMDAMD Instinct™ MI210Not specified—
AMDAMD Instinct™ MI250Not specified—

06 References