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 22× in last 7d / 104× 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 190 total refreshes for this CVE.

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

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 94.4% 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

Explore the affected products and dependency analysis for CVE-2026-21734

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