CVE-2026-6485

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-09. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts.

CVSS v3
8.2
EG Score
8.2(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

September 9, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

SA-2026004 - Insyde Software

https://www.insyde.com/security-pledge/sa-2026004/

Vendor Advisories for CVE-2026-6485(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 38× in last 7d / 56× 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. 2026-09-18 23:24 UTCEG score recompute
  2. 2026-09-18 23:24 UTCVendor advisory
  3. 2026-09-18 23:24 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 10:56 UTCVendor advisory
  6. 2026-09-18 10:56 UTCGHSA enrichment
  7. 2026-09-17 22:27 UTCEG score recompute
  8. 2026-09-17 22:27 UTCVendor advisory
  9. 2026-09-17 22:27 UTCGHSA enrichment
  10. 2026-09-17 09:58 UTCVendor advisory
  11. 2026-09-17 09:58 UTCGHSA enrichment
  12. 2026-09-16 21:28 UTCEG score recompute
  13. 2026-09-16 21:28 UTCVendor advisory
  14. 2026-09-16 21:28 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 08:55 UTCEG score recompute
  17. 2026-09-16 08:55 UTCVendor advisory
  18. 2026-09-16 08:55 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 20:13 UTCVendor advisory
  21. 2026-09-15 20:13 UTCGHSA enrichment
  22. 2026-09-15 07:44 UTCEG score recompute
  23. 2026-09-15 07:44 UTCVendor advisory
  24. 2026-09-15 07:44 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 31 more
  1. 2026-09-14 19:15 UTCVendor advisory
  2. 2026-09-14 19:15 UTCGHSA enrichment
  3. 2026-09-14 06:46 UTCVendor advisory
  4. 2026-09-14 06:46 UTCGHSA enrichment
  5. 2026-09-13 18:17 UTCEG score recompute
  6. 2026-09-13 18:17 UTCVendor advisory
  7. 2026-09-13 18:17 UTCGHSA enrichment
  8. 2026-09-13 05:48 UTCVendor advisory
  9. 2026-09-13 05:48 UTCGHSA enrichment
  10. 2026-09-12 17:19 UTCEG score recompute
  11. 2026-09-12 17:19 UTCVendor advisory
  12. 2026-09-12 17:19 UTCGHSA enrichment
  13. 2026-09-12 15:02 UTCEPSS rescore
  14. 2026-09-12 04:50 UTCVendor advisory
  15. 2026-09-12 04:50 UTCGHSA enrichment
  16. 2026-09-11 16:21 UTCEG score recompute
  17. 2026-09-11 16:21 UTCVendor advisory
  18. 2026-09-11 16:21 UTCGHSA enrichment
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-11 09:37 UTCEPSS rescore
  21. 2026-09-11 03:52 UTCGHSA enrichment
  22. 2026-09-10 15:23 UTCEG score recompute
  23. 2026-09-10 15:23 UTCGHSA enrichment
  24. 2026-09-10 14:36 UTCEG score recompute
  25. 2026-09-10 14:36 UTCGHSA enrichment
  26. 2026-09-10 04:20 UTCGHSA enrichment
  27. 2026-09-09 15:51 UTCEG score recompute
  28. 2026-09-09 15:51 UTCGHSA enrichment
  29. 2026-09-09 04:38 UTCEG score recompute
  30. 2026-09-09 03:57 UTCEG score recompute
  31. 2026-09-09 03:56 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-6485?
CVE-2026-6485 is a high vulnerability published on September 9, 2026. UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts.
When was CVE-2026-6485 disclosed?
CVE-2026-6485 was first published in the National Vulnerability Database on September 9, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6485 actively exploited?
CVE-2026-6485 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-6485?
CVE-2026-6485 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-6485?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6485, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-6485

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