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CVE Record

CVE-2020-12951: Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Management M...

Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Management Mode) operations.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a firmware-level AMD issue affecting some Ryzen and Athlon systems. The source says a race condition could let lower-privileged code perform highly privileged ASP SMM operations. Business urgency depends on whether affected processors and firmware versions are present; the bundle does not provide severity, patch status, or exploitation evidence.

Executive priority

Make this a firmware exposure review rather than an emergency response unless vendor guidance or new intelligence confirms affected critical assets or exploitation. Prioritize systems with sensitive workloads because SMM-related issues can affect deep platform trust boundaries.

Technical view

CVE-2020-12951 is described as a race condition in AMD ASP firmware. The stated impact is that less privileged x86 code could perform ASP SMM operations, implying a privileged firmware/SMM boundary issue. The bundle lists AMD Ryzen Series and Athlon Series, various versions, but provides no CVSS, CWE, affected SKU list, exploit details, or confirmed remediation text.

Likely exposure

Organizations with AMD Ryzen or Athlon systems may be exposed if their specific platform firmware falls under AMD SB-1027. The supplied data says “various” versions only, so exposure requires asset and firmware validation against AMD or OEM guidance.

Exploitation context

The source bundle does not show CISA KEV listing, public exploitation, proof-of-concept details, or attack prevalence. Treat active exploitation as unconfirmed based on the provided evidence.

Researcher notes

Key gaps remain: no CVSS, CWE, SKU list, fixed versions, exploit status, or detailed root-cause material in the bundle. Analysis should stay anchored to AMD SB-1027 and CVE records until more specific vendor or platform data is available.

Mitigation direction

  • Review AMD SB-1027 for affected platforms and remediation guidance.
  • Check OEM BIOS or firmware advisories for Ryzen and Athlon systems.
  • Apply only vendor-supported firmware updates for confirmed affected systems.
  • Prioritize managed endpoints and servers with AMD Ryzen or Athlon processors.
  • Monitor AMD and CISA KEV for updated exploitation or remediation status.

Validation and detection

  • Inventory systems using AMD Ryzen or Athlon processors.
  • Record BIOS, firmware, and platform model versions for those systems.
  • Compare assets against AMD SB-1027 and OEM advisories.
  • Confirm whether vendor-supported firmware updates are installed.
  • Track unsupported or unpatched systems as risk exceptions.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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CVE-2020-12951 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AMDRyzen™ SeriesvariousListed
AMDAthlon™ SeriesvariousListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.