CVE-2026-37541

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-01. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 10.0Exploit: None knownExposed: 0

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

Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity100% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

May 1, 2026

Last Modified

May 20, 2026

Advisory Details (3)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

CVE-2026-37541 In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated · Issue #1393 · openvehicles/Open-Vehicle-Monitoring-System-3 · GitHub

https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1393
generic

GitHub - openvehicles/Open-Vehicle-Monitoring-System-3: Open Vehicle Monitoring System - Version 3 · GitHub

https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3
generic

Automotive CAN Protocol Libraries Multiple Buffer Overflows (CVE-2026-37534 through 37541, 42467-42469) · GitHub

https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 31× 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 303 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37541?
CVE-2026-37541 is a critical vulnerability published on May 1, 2026. Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.
When was CVE-2026-37541 disclosed?
CVE-2026-37541 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on May 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37541 actively exploited?
CVE-2026-37541 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.6% of all scored CVEs.
What is the CVSS score of CVE-2026-37541?
CVE-2026-37541 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-37541?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37541, 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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