Security readout for executives and security teams
Plain-English summary
CVE-2023-31309 affects AMD Radeon RX/PRO graphics products. A highly privileged local attacker could abuse improper validation in power management firmware when SMU table data is exported to memory, potentially exposing information or causing limited availability impact.
Executive priority
Treat as a moderate-priority endpoint and workstation risk. It is not described as remotely exploitable, but confidentiality impact can be high where privileged users, shared GPU resources, or sensitive workloads are present.
Technical view
The issue is CWE-129 improper validation in AMD Power Management Firmware. CVSS 4.0 is 6.8: local attack vector, low complexity, high privileges required, no user interaction, high vulnerable-system confidentiality impact, and low availability impact.
Likely exposure
Exposure is most relevant on systems using affected AMD Radeon RX 6000 Series, Radeon PRO W6000 Series, Radeon PRO V520, or Radeon PRO V620 products with the AMD software or customer-engineering guidance referenced by AMD.
Exploitation context
The provided sources do not show known active exploitation, and the CVE is not marked KEV. Exploitation requires local access with high privileges, which lowers broad internet-facing risk but matters on shared workstations, VDI, rendering, or research systems.
Researcher notes
Key constraints are local access and high privileges. The vulnerability path involves malformed workload arguments during SMU-to-DRAM table export. Public details are limited, so avoid assuming exploitability beyond the CVSS and AMD bulletin.
Mitigation direction
- Review AMD-SB-6027 for product-specific remediation guidance.
- Inventory endpoints using affected AMD Radeon RX or PRO GPUs.
- Contact AMD Customer Engineering for Radeon PRO V520 or V620 guidance.
- Restrict local administrative access on GPU-equipped systems.
- Prioritize shared or multi-user GPU systems first.
Validation and detection
- Confirm installed AMD GPU model and driver/software package.
- Compare deployed versions against AMD-SB-6027 guidance.
- Check whether affected systems allow untrusted privileged local users.
- Review endpoint telemetry for GPU driver or firmware stability issues.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-129: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-31309 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N——AMDVulnerability scoring details
Base CVSS 4.0 score
6.8MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6027.htmlCVE reference, AMD
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Validation of Array Index
Improper Validation of Array Index represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.