CVE-2026-48423

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. 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 is 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
10%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

References (1)

Vendor Advisories for CVE-2026-48423(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 23× in last 7d / 101× 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 101 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48423?
CVE-2026-48423 is a high vulnerability published on August 25, 2026. Substance3D - Sampler is 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-2026-48423 disclosed?
CVE-2026-48423 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48423 actively exploited?
CVE-2026-48423 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 89.8% of all scored CVEs.
What is the CVSS score of CVE-2026-48423?
CVE-2026-48423 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-48423?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48423, 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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