CVE-2023-37921

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-01-08. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

Multiple arbitrary write vulnerabilities exist in the VCD sorted bsearch functionality of GTKWave 3.3.115. A specially crafted .vcd file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the arbitrary write when triggered via the vcd2vzt conversion utility.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
34.8%
KEV
Not listed

Published

January 8, 2024

Last Modified

November 4, 2025

References (5)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 50× 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. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-11 08:25 UTCEPSS rescore
  3. 2026-07-09 19:08 UTCEPSS rescore
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  5. 2026-07-08 15:13 UTCEPSS rescore
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  10. 2026-07-05 02:29 UTCEPSS rescore
  11. 2026-07-04 06:29 UTCEPSS rescore
  12. 2026-07-02 16:59 UTCEPSS rescore
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  14. 2026-06-30 23:21 UTCEPSS rescore
  15. 2026-06-30 23:21 UTCEPSS rescore
  16. 2026-06-29 14:05 UTCEPSS rescore
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  18. 2026-06-28 14:06 UTCEPSS rescore
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  20. 2026-06-28 04:55 UTCEPSS rescore
  21. 2026-06-28 04:55 UTCEPSS rescore
  22. 2026-06-27 03:07 UTCEPSS rescore
  23. 2026-06-27 03:07 UTCEPSS rescore
  24. 2026-06-27 00:07 UTCOSV refresh
  25. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-25 13:48 UTCEPSS rescore
  2. 2026-06-24 14:04 UTCEPSS rescore
  3. 2026-06-24 14:03 UTCEPSS rescore
  4. 2026-06-23 21:31 UTCEPSS rescore
  5. 2026-06-23 21:31 UTCEPSS rescore
  6. 2026-06-22 14:24 UTCEPSS rescore
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  8. 2026-06-21 14:55 UTCEPSS rescore
  9. 2026-06-21 14:55 UTCEPSS rescore
  10. 2026-06-21 01:58 UTCEPSS rescore
  11. 2026-06-21 01:58 UTCEPSS rescore
  12. 2026-06-19 19:24 UTCEPSS rescore
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  14. 2026-06-18 17:51 UTCEPSS rescore
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  18. 2026-06-16 17:51 UTCEPSS rescore
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  20. 2026-06-15 17:47 UTCEPSS rescore
  21. 2026-06-14 23:16 UTCEPSS rescore
  22. 2026-06-13 22:59 UTCEPSS rescore
  23. 2026-06-13 22:59 UTCEPSS rescore
  24. 2026-06-12 23:10 UTCEPSS rescore
  25. 2026-06-12 23:10 UTCEPSS rescore
  26. 2026-06-11 13:59 UTCEPSS rescore
  27. 2026-06-11 13:59 UTCEPSS rescore
  28. 2026-06-10 22:17 UTCEPSS rescore
  29. 2026-06-10 13:21 UTCEPSS rescore
  30. 2026-06-09 10:40 UTCOSV refresh
  31. 2026-06-08 14:16 UTCEPSS rescore
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  33. 2026-06-07 15:23 UTCEPSS rescore
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  35. 2026-06-06 13:46 UTCEPSS rescore
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  37. 2026-06-05 22:46 UTCEPSS rescore
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  39. 2026-06-05 06:09 UTCEPSS rescore
  40. 2026-06-05 06:09 UTCEPSS rescore
  41. 2026-06-04 13:11 UTCEPSS rescore
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  43. 2026-06-02 20:12 UTCEPSS rescore
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  45. 2026-06-02 20:12 UTCEPSS rescore
  46. 2026-06-01 13:51 UTCEPSS rescore
  47. 2026-06-01 13:51 UTCEPSS rescore
  48. 2026-05-31 22:30 UTCEPSS rescore
  49. 2026-05-31 22:29 UTCEPSS rescore
  50. 2026-05-31 22:29 UTCEPSS rescore
  51. 2026-05-31 00:15 UTCEPSS rescore
  52. 2026-05-31 00:15 UTCEPSS rescore
  53. 2026-05-29 13:43 UTCEPSS rescore
  54. 2026-05-29 13:43 UTCEPSS rescore
  55. 2026-05-28 13:43 UTCEPSS rescore
  56. 2026-05-28 13:43 UTCEPSS rescore
  57. 2026-05-27 13:39 UTCEPSS rescore
  58. 2026-05-26 13:43 UTCEPSS rescore
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  60. 2026-05-26 07:18 UTCEPSS rescore
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  63. 2026-05-24 16:52 UTCEPSS rescore
  64. 2026-05-24 10:54 UTCEG score recompute
  65. 2026-05-24 10:54 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-37921?
CVE-2023-37921 is a high vulnerability published on January 8, 2024. Multiple arbitrary write vulnerabilities exist in the VCD sorted bsearch functionality of GTKWave 3.3.115. A specially crafted .vcd file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the arbitrary…
When was CVE-2023-37921 disclosed?
CVE-2023-37921 was first published in the National Vulnerability Database on January 8, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-37921 actively exploited?
CVE-2023-37921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-37921?
CVE-2023-37921 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-37921?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-37921, 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.

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