CVE-2026-34674

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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.

Substance3D - Sampler versions 5.1.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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
15%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 31, 2026

References (1)

Vendor Advisories for CVE-2026-34674(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 29× in last 7d / 108× 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 108 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-34674?
CVE-2026-34674 is a high vulnerability published on August 27, 2026. Substance3D - Sampler versions 5.1.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
When was CVE-2026-34674 disclosed?
CVE-2026-34674 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34674 actively exploited?
CVE-2026-34674 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 84.8% of all scored CVEs.
What is the CVSS score of CVE-2026-34674?
CVE-2026-34674 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-34674?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34674, 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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