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 42× in last 7d / 231× 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 471 total refreshes for this CVE.

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