Security readout for executives and security teams
Plain-English summary
This is a low-severity AMD platform security issue. A highly privileged local attacker could abuse weak validation inside the trusted execution environment messaging path, potentially affecting integrity of protected memory. It is not a remote takeover scenario from the provided evidence.
Executive priority
Handle through normal patch governance, not emergency response. Prioritize environments with affected AMD hardware, especially embedded deployments and managed fleets where firmware remediation takes longer.
Technical view
The flaw involves missing validation of address and size values in AMD TEE handling. Malformed messages to the graphics mailbox could overlap a Trusted Memory Region previously allocated by the ASP bootloader, causing potential loss of integrity. CVSS is 3.0 with local access, high complexity, and high privileges required.
Likely exposure
Exposure is limited to systems using the listed AMD Ryzen, Athlon, Embedded, Radeon RX 6000, Radeon PRO W6000, or Radeon PRO V620 products with affected firmware or software versions.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Exploitation requires a malicious local x86 attacker with high privileges and high attack complexity, which materially lowers operational urgency.
Researcher notes
CWE-190 is listed, while the description emphasizes address and size validation failure in the TEE graphics mailbox path. Evidence supports potential integrity impact only, with low confidentiality impact and no availability impact. Product-level exposure depends on firmware or AMD Software versions cited in AMD advisories.
Mitigation direction
- Review AMD-SB-4012, AMD-SB-6018, and AMD-SB-5007 for product-specific guidance.
- Apply AMD or OEM firmware and driver updates identified for affected platforms.
- For Radeon PRO V620, contact the AMD Customer Engineering representative as directed.
- Prioritize embedded and long-lived systems where firmware updates are slow or OEM-managed.
Validation and detection
- Inventory systems using the affected AMD processor and graphics product families.
- Compare BIOS, platform firmware, and AMD Software versions against the AMD bulletins.
- Confirm OEM update availability for laptops, desktops, and embedded platforms.
- Check deployment baselines and images for affected firmware or driver versions.
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-190: 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-2021-46750 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
- Low
- CVSS
- 3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A: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.
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:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N0.52.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3LowVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Source materials
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.
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.