CVE-2020-12926

MEDIUMNVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.4 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
—
EPSS
11.6%
KEV
Not listed

Published

November 12, 2020

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 22:33 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
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  70. 2026-05-23 05:15 UTCEG score recompute
  71. 2026-05-23 05:15 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-12926?
CVE-2020-12926 is a medium vulnerability published on November 12, 2020. The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device…
When was CVE-2020-12926 disclosed?
CVE-2020-12926 was first published in the National Vulnerability Database on November 12, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-12926 actively exploited?
CVE-2020-12926 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-12926?
CVE-2020-12926 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2020-12926?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-12926, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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