CVE-2026-9034

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.

This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.

CVSS v3
7.8
EG Score
7.8(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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
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-2026-9034(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 26× in last 7d / 66× 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. 2026-09-25 07:04 UTCGHSA enrichment
  2. 2026-09-24 19:16 UTCEG score recompute
  3. 2026-09-24 19:16 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 07:29 UTCGHSA enrichment
  6. 2026-09-23 19:41 UTCEG score recompute
  7. 2026-09-23 19:41 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 06:55 UTCGHSA enrichment
  10. 2026-09-22 19:07 UTCEG score recompute
  11. 2026-09-22 19:07 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 07:19 UTCEG score recompute
  14. 2026-09-22 07:19 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 19:32 UTCGHSA enrichment
  17. 2026-09-21 07:43 UTCEG score recompute
  18. 2026-09-21 07:43 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 19:55 UTCGHSA enrichment
  21. 2026-09-20 08:07 UTCGHSA enrichment
  22. 2026-09-19 19:33 UTCGHSA enrichment
  23. 2026-09-19 07:45 UTCGHSA enrichment
  24. 2026-09-18 19:55 UTCEG score recompute
  25. 2026-09-18 19:55 UTCGHSA enrichment
Show 41 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 08:07 UTCGHSA enrichment
  3. 2026-09-17 20:19 UTCEG score recompute
  4. 2026-09-17 20:19 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 06:05 UTCGHSA enrichment
  7. 2026-09-16 18:18 UTCEG score recompute
  8. 2026-09-16 18:17 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 06:05 UTCEG score recompute
  11. 2026-09-16 06:05 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 18:17 UTCGHSA enrichment
  14. 2026-09-15 06:08 UTCEG score recompute
  15. 2026-09-15 06:08 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 18:21 UTCGHSA enrichment
  18. 2026-09-14 05:59 UTCGHSA enrichment
  19. 2026-09-13 18:11 UTCEG score recompute
  20. 2026-09-13 18:11 UTCGHSA enrichment
  21. 2026-09-13 16:48 UTCEPSS rescore
  22. 2026-09-13 06:23 UTCGHSA enrichment
  23. 2026-09-12 18:36 UTCEG score recompute
  24. 2026-09-12 18:36 UTCGHSA enrichment
  25. 2026-09-12 15:02 UTCEPSS rescore
  26. 2026-09-12 06:48 UTCGHSA enrichment
  27. 2026-09-11 19:01 UTCEG score recompute
  28. 2026-09-11 19:01 UTCGHSA enrichment
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 09:38 UTCEPSS rescore
  31. 2026-09-11 07:09 UTCEG score recompute
  32. 2026-09-11 07:09 UTCGHSA enrichment
  33. 2026-09-10 19:21 UTCGHSA enrichment
  34. 2026-09-10 18:25 UTCEG score recompute▲ 7.80
  35. 2026-09-10 18:25 UTCGHSA enrichment
  36. 2026-09-10 18:24 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  37. 2026-09-10 09:35 UTCEPSS rescore
  38. 2026-09-08 15:32 UTCGHSA enrichment
  39. 2026-09-08 15:27 UTCNVD update
  40. 2026-09-08 14:37 UTCEG score recompute
  41. 2026-09-08 14:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9034?
CVE-2026-9034 is a high vulnerability published on September 8, 2026. Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed…
When was CVE-2026-9034 disclosed?
CVE-2026-9034 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-2026-9034 actively exploited?
CVE-2026-9034 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 95.4% of all scored CVEs.
What is the CVSS score of CVE-2026-9034?
CVE-2026-9034 has a CVSS v3.1 base score of 7.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9034?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9034, 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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