CVE-2025-59689

CRITICALNVD 6.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-09-29), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 2%CVSS: 6.1Exploit: cisa kev · ssvc activeExposed: 0

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

Libraesva ESG 4.5 through 5.5.x before 5.5.7 allows command injection via a compressed e-mail attachment. For ESG 5.0 a fix has been released in 5.0.31. For ESG 5.1 a fix has been released in 5.1.20. For ESG 5.2 a fix has been released in 5.2.31. For ESG 5.4 a fix has been released in 5.4.8. For ESG 5.5. a fix has been released in 5.5.7.

CVSS v3
6.1
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: 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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
78%
KEV
⚠ Exploited

Published

September 19, 2025

Last Modified

November 5, 2025

Advisory Details (3)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59689
generic

Libraesva Email Security blog and insights - Libraesva

https://www.libraesva.com/security-blog/
generic

Security advisory: command injection vulnerability (CVE-2025-59689) – Libraesva Docs

https://docs.libraesva.com/knowledgebase/security-advisory-command-injection-vulnerability-cve-2025-59689/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 60× in last 7d / 253× 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 936 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2025-59689?
CVE-2025-59689 is a critical vulnerability published on September 19, 2025. Libraesva ESG 4.5 through 5.5.x before 5.5.7 allows command injection via a compressed e-mail attachment. For ESG 5.0 a fix has been released in 5.0.31. For ESG 5.1 a fix has been released in 5.1.20. For ESG 5.2 a fix has been released in 5.2.31. For ESG 5.4 a fix has been released in 5.4.8. For…
When was CVE-2025-59689 disclosed?
CVE-2025-59689 was first published in the National Vulnerability Database on September 19, 2025, with the most recent update on November 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-59689 actively exploited?
Yes. CISA added CVE-2025-59689 to the Known Exploited Vulnerabilities catalog on September 29, 2025, affecting Libraesva Email Security Gateway. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-59689?
CVE-2025-59689 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-59689?
CVE-2025-59689 affects Libraesva Email Security Gateway. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-59689?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-59689, 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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