CVE-2026-21734

HIGHPre-NVD 7.77.7
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. 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 web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device.

An edge case using a very small value in GPU shader code can cause a segmentation fault in the GPU shader compiler due to am out-of-bounds write.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

Imagination GPU Driver Vulnerabilities - Imagination

https://www.imaginationtech.com/gpu-driver-vulnerabilities/

Vendor Advisories for CVE-2026-21734(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 12× in last 7d / 48× 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.

Showing the most recent 100 of 220 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 07:13 UTCEG score recompute
  3. 2026-09-18 07:13 UTCGHSA enrichment
  4. 2026-09-16 14:07 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-14 01:11 UTCEG score recompute
  7. 2026-09-14 01:11 UTCGHSA enrichment
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-13 09:32 UTCGHSA enrichment
  10. 2026-09-12 15:35 UTCEG score recompute
  11. 2026-09-12 15:35 UTCGHSA enrichment
  12. 2026-09-12 15:01 UTCEPSS rescore
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-08 22:00 UTCEPSS rescore
  15. 2026-09-07 16:01 UTCEPSS rescore
  16. 2026-09-06 13:47 UTCEPSS rescore
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-01 13:53 UTCEPSS rescore
  21. 2026-09-01 04:39 UTCEPSS rescore
  22. 2026-08-30 19:21 UTCEG score recompute
  23. 2026-08-30 19:21 UTCGHSA enrichment
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 01:22 UTCEPSS rescore
Show 75 more
  1. 2026-08-28 21:41 UTCEPSS rescore
  2. 2026-08-27 23:06 UTCEG score recompute
  3. 2026-08-27 23:06 UTCGHSA enrichment
  4. 2026-08-27 14:25 UTCEPSS rescore
  5. 2026-08-26 14:46 UTCEPSS rescore
  6. 2026-08-25 13:48 UTCEPSS rescore
  7. 2026-08-25 00:43 UTCEG score recompute
  8. 2026-08-25 00:43 UTCGHSA enrichment
  9. 2026-08-24 12:54 UTCEG score recompute
  10. 2026-08-24 12:54 UTCGHSA enrichment
  11. 2026-08-23 21:17 UTCGHSA enrichment
  12. 2026-08-23 09:36 UTCEG score recompute
  13. 2026-08-23 09:36 UTCGHSA enrichment
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-22 21:52 UTCGHSA enrichment
  16. 2026-08-22 09:33 UTCEG score recompute
  17. 2026-08-22 09:33 UTCGHSA enrichment
  18. 2026-08-21 23:49 UTCEPSS rescore
  19. 2026-08-21 17:52 UTCGHSA enrichment
  20. 2026-08-21 06:12 UTCEG score recompute
  21. 2026-08-21 06:12 UTCGHSA enrichment
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-20 18:31 UTCGHSA enrichment
  24. 2026-08-20 06:51 UTCEG score recompute
  25. 2026-08-20 06:51 UTCGHSA enrichment
  26. 2026-08-19 17:03 UTCEPSS rescore
  27. 2026-08-19 12:38 UTCGHSA enrichment
  28. 2026-08-18 23:56 UTCEG score recompute
  29. 2026-08-18 23:56 UTCGHSA enrichment
  30. 2026-08-18 13:48 UTCEPSS rescore
  31. 2026-08-17 13:47 UTCEPSS rescore
  32. 2026-08-17 09:06 UTCGHSA enrichment
  33. 2026-08-16 21:26 UTCEG score recompute
  34. 2026-08-16 21:26 UTCGHSA enrichment
  35. 2026-08-16 14:56 UTCEPSS rescore
  36. 2026-08-16 09:46 UTCEG score recompute
  37. 2026-08-16 09:45 UTCGHSA enrichment
  38. 2026-08-16 02:14 UTCEPSS rescore
  39. 2026-08-15 22:05 UTCGHSA enrichment
  40. 2026-08-15 10:24 UTCEG score recompute
  41. 2026-08-15 10:24 UTCGHSA enrichment
  42. 2026-08-15 01:30 UTCEPSS rescore
  43. 2026-08-14 22:43 UTCGHSA enrichment
  44. 2026-08-14 11:02 UTCGHSA enrichment
  45. 2026-08-13 23:22 UTCEG score recompute
  46. 2026-08-13 23:22 UTCGHSA enrichment
  47. 2026-08-13 22:00 UTCEPSS rescore
  48. 2026-08-13 11:41 UTCGHSA enrichment
  49. 2026-08-13 00:00 UTCEG score recompute
  50. 2026-08-13 00:00 UTCGHSA enrichment
  51. 2026-08-12 13:50 UTCEPSS rescore
  52. 2026-08-12 12:20 UTCGHSA enrichment
  53. 2026-08-12 00:39 UTCGHSA enrichment
  54. 2026-08-11 12:58 UTCGHSA enrichment
  55. 2026-08-11 01:17 UTCEG score recompute
  56. 2026-08-11 01:17 UTCGHSA enrichment
  57. 2026-08-11 00:00 UTCEPSS rescore
  58. 2026-08-10 13:37 UTCGHSA enrichment
  59. 2026-08-10 01:56 UTCGHSA enrichment
  60. 2026-08-09 14:15 UTCGHSA enrichment
  61. 2026-08-09 02:35 UTCEG score recompute
  62. 2026-08-09 02:35 UTCGHSA enrichment
  63. 2026-08-08 16:37 UTCEPSS rescore
  64. 2026-08-08 14:55 UTCGHSA enrichment
  65. 2026-08-08 03:14 UTCEG score recompute
  66. 2026-08-08 03:14 UTCGHSA enrichment
  67. 2026-08-07 15:33 UTCGHSA enrichment
  68. 2026-08-07 03:52 UTCGHSA enrichment
  69. 2026-08-06 16:12 UTCEG score recompute
  70. 2026-08-06 16:12 UTCGHSA enrichment
  71. 2026-08-06 13:46 UTCEPSS rescore
  72. 2026-08-06 04:31 UTCEG score recompute
  73. 2026-08-06 04:31 UTCGHSA enrichment
  74. 2026-08-05 19:17 UTCEPSS rescore
  75. 2026-08-05 16:51 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-21734?
CVE-2026-21734 is a high vulnerability published on June 26, 2026. A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. An…
When was CVE-2026-21734 disclosed?
CVE-2026-21734 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21734 actively exploited?
CVE-2026-21734 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 94.2% of all scored CVEs.
What is the CVSS score of CVE-2026-21734?
CVE-2026-21734 has a CVSS v3.1 base score of 7.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-21734?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21734, 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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