CVE-2026-94146

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-21. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

A vulnerability was found in BioStar BIOS Update Utility 1.9.7.3. This issue affects the function sub_110BC of the file BSMEM64_W10.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress/Size results in write-what-where condition. Attacking locally is a requirement. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 21, 2026

Last Modified

September 22, 2026

References (4)

Vendor Advisories for CVE-2026-94146(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 59× 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. 2026-10-04 11:50 UTCGHSA enrichment
  2. 2026-10-03 22:58 UTCEG score recompute
  3. 2026-10-03 22:58 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-03 10:05 UTCGHSA enrichment
  6. 2026-10-02 21:12 UTCEG score recompute
  7. 2026-10-02 21:12 UTCGHSA enrichment
  8. 2026-10-02 17:57 UTCEPSS rescore
  9. 2026-10-02 08:19 UTCGHSA enrichment
  10. 2026-10-01 19:27 UTCGHSA enrichment
  11. 2026-10-01 06:34 UTCGHSA enrichment
  12. 2026-09-30 17:42 UTCEG score recompute
  13. 2026-09-30 17:42 UTCGHSA enrichment
  14. 2026-09-30 15:04 UTCEPSS rescore
  15. 2026-09-30 04:50 UTCGHSA enrichment
  16. 2026-09-29 15:57 UTCEG score recompute
  17. 2026-09-29 15:57 UTCGHSA enrichment
  18. 2026-09-29 03:05 UTCEG score recompute
  19. 2026-09-29 03:05 UTCGHSA enrichment
  20. 2026-09-28 14:11 UTCEG score recompute
  21. 2026-09-28 14:11 UTCGHSA enrichment
  22. 2026-09-28 13:52 UTCEPSS rescore
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 01:18 UTCEG score recompute
  25. 2026-09-28 01:18 UTCGHSA enrichment
Show 34 more
  1. 2026-09-27 13:49 UTCEPSS rescore
  2. 2026-09-27 12:25 UTCGHSA enrichment
  3. 2026-09-26 23:32 UTCEG score recompute
  4. 2026-09-26 23:32 UTCGHSA enrichment
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-26 10:40 UTCEG score recompute
  7. 2026-09-26 10:39 UTCGHSA enrichment
  8. 2026-09-25 21:40 UTCGHSA enrichment
  9. 2026-09-25 08:46 UTCGHSA enrichment
  10. 2026-09-24 19:53 UTCEG score recompute
  11. 2026-09-24 19:53 UTCGHSA enrichment
  12. 2026-09-24 14:04 UTCEPSS rescore
  13. 2026-09-24 07:01 UTCGHSA enrichment
  14. 2026-09-23 18:07 UTCEG score recompute
  15. 2026-09-23 18:07 UTCGHSA enrichment
  16. 2026-09-23 17:54 UTCEPSS rescore
  17. 2026-09-23 05:15 UTCGHSA enrichment
  18. 2026-09-22 16:22 UTCEG score recompute
  19. 2026-09-22 16:22 UTCGHSA enrichment
  20. 2026-09-22 16:19 UTCNVD updateCVSS v4 → 8.5
  21. 2026-09-22 16:01 UTCEPSS rescore
  22. 2026-09-22 15:45 UTCEG score recompute
  23. 2026-09-22 15:45 UTCGHSA enrichment
  24. 2026-09-22 15:44 UTCMITRE cvelistV5CVSS v4 → 9.3
  25. 2026-09-22 15:24 UTCGHSA enrichment
  26. 2026-09-22 02:31 UTCEG score recompute
  27. 2026-09-22 02:31 UTCGHSA enrichment
  28. 2026-09-21 21:09 UTCEPSS rescore
  29. 2026-09-21 13:39 UTCEG score recompute
  30. 2026-09-21 13:39 UTCGHSA enrichment
  31. 2026-09-21 07:24 UTCEG score recompute
  32. 2026-09-21 07:23 UTCNVD updateCVSS v4 → 8.5
  33. 2026-09-21 07:08 UTCEG score recompute
  34. 2026-09-21 07:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-94146?
CVE-2026-94146 is a high vulnerability published on September 21, 2026. A vulnerability was found in BioStar BIOS Update Utility 1.9.7.3. This issue affects the function sub110BC of the file BSMEM64W10.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress/Size results in write-what-where condition. Attacking locally is a requirement. The…
When was CVE-2026-94146 disclosed?
CVE-2026-94146 was first published on September 21, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94146 actively exploited?
CVE-2026-94146 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-94146?
CVE-2026-94146 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-94146?
No fix for CVE-2026-94146 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-94146 are linked in the Vendor Advisories panel on this page.

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