CVE-2026-42483

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-01. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
22.7%
KEV
Not listed

Published

May 1, 2026

Last Modified

May 1, 2026

Advisory Details (1)

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

Six Security Findings in hashcat v7.1.2 · GitHub

https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 33× 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 169 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-42483?
CVE-2026-42483 is a critical vulnerability published on May 1, 2026. A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects modulehashdecode in multiple Kerberos-related modules because accountinfolen is…
When was CVE-2026-42483 disclosed?
CVE-2026-42483 was first published in the National Vulnerability Database on May 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42483 actively exploited?
CVE-2026-42483 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42483?
CVE-2026-42483 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-42483?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42483, 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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