Security readout for executives and security teams
Plain-English summary
This is a local privilege-escalation issue in AMD VBIOS Flash Tool SDK. An authenticated Windows user may be able to abuse a dynamically loaded AMD driver to gain NT AUTHORITY\SYSTEM privileges. It matters most on systems where the SDK or related flashing tooling is installed; the bundle identifies mitigation in version 3.12.
Executive priority
Prioritize remediation where the SDK exists on shared workstations, support systems, or environments with many authenticated users. Business urgency is lower if the tool is absent, but affected hosts could allow full local system takeover.
Technical view
CVE-2020-12927 is described as CWE-749 in a dynamically loaded AMD driver used by AMD VBIOS Flash Tool SDK. The reported impact is escalation from authenticated user to NT AUTHORITY\SYSTEM. The source bundle does not provide CVSS scoring, detailed prerequisites, affected operating systems, or exploit mechanics.
Likely exposure
Exposure appears limited to environments with AMD VBIOS Flash Tool SDK installed, especially engineering, hardware service, imaging, or GPU firmware maintenance systems. General AMD GPU ownership alone is not established as affected by the sources.
Exploitation context
The source bundle does not cite active exploitation, and KEV status is false. Treat this as a local post-authentication privilege-escalation risk rather than a remote compromise path unless AMD or another cited source states otherwise.
Researcher notes
Available public detail is sparse. The key validated facts are local authenticated privilege escalation, dynamically loaded AMD driver involvement, CWE-749 classification, and mitigation in version 3.12. Avoid assuming broader AMD driver or GPU exposure without vendor confirmation.
Mitigation direction
- Upgrade AMD VBIOS Flash Tool SDK to version 3.12 or later.
- Check AMD product security guidance for any newer vendor instructions.
- Remove the SDK from systems that do not require firmware flashing workflows.
- Restrict access to systems where the SDK remains operationally necessary.
- Prioritize developer, lab, and support endpoints with local user access.
Validation and detection
- Inventory systems for AMD VBIOS Flash Tool SDK installations.
- Confirm installed SDK versions are 3.12 or later.
- Review software deployment records for older VBIOS flashing tool packages.
- Identify hosts where non-administrative users can access the SDK.
- Document any remaining business need for affected 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-749: 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-2020-12927 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.amd.com/en/corporate/product-securityCVE reference · x_refsource_MISC
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.
Exposed Dangerous Method or Function
Exposed Dangerous Method or Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.