CVE-2026-9040

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: None knownExposed: 0

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

A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to cause a denial of service or disclose sensitive information.

This issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.

CVSS v3
7.7
EG Score
7.7(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity77% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 10, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

Documentation – Arm Developer

https://support.arm.com/documentation/111552/1-0/?lang=en

Vendor Advisories for CVE-2026-9040(1)

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 25× in last 7d / 46× 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. 2026-09-21 00:47 UTCGHSA enrichment
  2. 2026-09-20 12:30 UTCGHSA enrichment
  3. 2026-09-19 23:56 UTCEG score recompute
  4. 2026-09-19 23:56 UTCGHSA enrichment
  5. 2026-09-19 11:39 UTCGHSA enrichment
  6. 2026-09-18 23:10 UTCEG score recompute
  7. 2026-09-18 23:09 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 10:52 UTCGHSA enrichment
  10. 2026-09-17 22:35 UTCEG score recompute
  11. 2026-09-17 22:35 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 10:14 UTCGHSA enrichment
  14. 2026-09-16 21:57 UTCEG score recompute
  15. 2026-09-16 21:57 UTCGHSA enrichment
  16. 2026-09-16 14:09 UTCEPSS rescore
  17. 2026-09-16 09:39 UTCEG score recompute
  18. 2026-09-16 09:39 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 21:21 UTCGHSA enrichment
  21. 2026-09-15 09:03 UTCEG score recompute
  22. 2026-09-15 09:03 UTCGHSA enrichment
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-14 20:45 UTCGHSA enrichment
  25. 2026-09-14 08:28 UTCGHSA enrichment
Show 21 more
  1. 2026-09-13 20:11 UTCGHSA enrichment
  2. 2026-09-13 07:53 UTCGHSA enrichment
  3. 2026-09-12 19:37 UTCEG score recompute
  4. 2026-09-12 19:37 UTCGHSA enrichment
  5. 2026-09-12 15:02 UTCEPSS rescore
  6. 2026-09-12 07:19 UTCGHSA enrichment
  7. 2026-09-11 19:01 UTCEG score recompute
  8. 2026-09-11 19:01 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 09:38 UTCEPSS rescore
  11. 2026-09-11 06:41 UTCEG score recompute
  12. 2026-09-11 06:41 UTCGHSA enrichment
  13. 2026-09-10 18:24 UTCGHSA enrichment
  14. 2026-09-10 18:00 UTCEG score recompute▲ 7.70
  15. 2026-09-10 18:00 UTCGHSA enrichment
  16. 2026-09-10 17:59 UTCMITRE cvelistV5CVSS v3 → 7.7 · severity → HIGH
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-08 15:32 UTCGHSA enrichment
  19. 2026-09-08 15:27 UTCNVD update
  20. 2026-09-08 14:37 UTCEG score recompute
  21. 2026-09-08 14:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9040?
CVE-2026-9040 is a high vulnerability published on September 8, 2026. A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to cause a denial of service or disclose…
When was CVE-2026-9040 disclosed?
CVE-2026-9040 was first published in the National Vulnerability Database on September 8, 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-2026-9040 actively exploited?
CVE-2026-9040 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 99.2% of all scored CVEs.
What is the CVSS score of CVE-2026-9040?
CVE-2026-9040 has a CVSS v3.1 base score of 7.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9040?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9040, 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

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