CVE-2026-7864

MEDIUMNVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under NVD CVSS v3. EPSS exploit probability: 17.0%, top 3% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
6.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 17%CVSS: 6.9Exploit: NoneExposed: 0

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

SEPPmail Secure Email Gateway before version 15.0.4 exposes server environment variables through an unauthenticated endpoint in the new GINA UI, allowing remote attackers to obtain sensitive system information.

CVSS v3
6.9
EG Score
6.9(medium)
EPSS
96.7%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 18, 2026

Advisory Details (2)

Auto-updated May 18, 2026
No patch confirmed yet.
generic

SeppMail Secure E-Mail Gateway: Critical RCE and LFI Vulnerabilities - InfoGuard Labs

https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/
generic

15.0.4.3 Hotfix Release

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#security

Vendor Advisories for CVE-2026-7864(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7864?
CVE-2026-7864 is a medium vulnerability published on May 8, 2026. SEPPmail Secure Email Gateway before version 15.0.4 exposes server environment variables through an unauthenticated endpoint in the new GINA UI, allowing remote attackers to obtain sensitive system information.
When was CVE-2026-7864 disclosed?
CVE-2026-7864 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7864 actively exploited?
CVE-2026-7864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7864?
CVE-2026-7864 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-7864?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7864, 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.

Dependency Blast Radius

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