CVE-2026-26239

HIGHNVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.

We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5208 and later

CVSS v3
8.1
EG Score
8.1(high)
EPSS
21.0%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 17, 2026

References (1)

Vendor Advisories for CVE-2026-26239(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 33× in last 7d / 146× 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 146 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 01:33 UTCEG score recompute
  6. 2026-07-06 01:32 UTCGHSA enrichment
  7. 2026-07-05 13:13 UTCEG score recompute
  8. 2026-07-05 13:13 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 00:29 UTCEG score recompute
  11. 2026-07-05 00:29 UTCGHSA enrichment
  12. 2026-07-04 11:59 UTCEG score recompute
  13. 2026-07-04 11:59 UTCGHSA enrichment
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-03 20:33 UTCEG score recompute
  17. 2026-07-03 20:33 UTCGHSA enrichment
  18. 2026-07-03 08:15 UTCEG score recompute
  19. 2026-07-03 08:15 UTCGHSA enrichment
  20. 2026-07-02 16:09 UTCEG score recompute
  21. 2026-07-02 16:09 UTCGHSA enrichment
  22. 2026-07-02 03:50 UTCEG score recompute
  23. 2026-07-02 03:50 UTCGHSA enrichment
  24. 2026-07-01 15:33 UTCEG score recompute
  25. 2026-07-01 15:33 UTCGHSA enrichment
Show 75 more
  1. 2026-07-01 15:06 UTCEPSS rescore
  2. 2026-07-01 15:06 UTCEPSS rescore
  3. 2026-07-01 03:15 UTCEG score recompute
  4. 2026-07-01 03:15 UTCGHSA enrichment
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-30 23:22 UTCEPSS rescore
  7. 2026-06-30 14:58 UTCEG score recompute
  8. 2026-06-30 14:58 UTCGHSA enrichment
  9. 2026-06-30 02:26 UTCEG score recompute
  10. 2026-06-30 02:26 UTCGHSA enrichment
  11. 2026-06-29 14:09 UTCEG score recompute
  12. 2026-06-29 14:09 UTCGHSA enrichment
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-29 01:53 UTCEG score recompute
  15. 2026-06-29 01:53 UTCGHSA enrichment
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 14:07 UTCEPSS rescore
  18. 2026-06-28 13:36 UTCEG score recompute
  19. 2026-06-28 13:36 UTCGHSA enrichment
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-28 01:19 UTCEG score recompute
  23. 2026-06-28 01:19 UTCGHSA enrichment
  24. 2026-06-27 13:02 UTCEG score recompute
  25. 2026-06-27 13:02 UTCGHSA enrichment
  26. 2026-06-27 03:08 UTCEPSS rescore
  27. 2026-06-27 00:45 UTCEG score recompute
  28. 2026-06-27 00:44 UTCGHSA enrichment
  29. 2026-06-26 12:23 UTCEG score recompute
  30. 2026-06-26 12:23 UTCGHSA enrichment
  31. 2026-06-25 22:15 UTCEG score recompute
  32. 2026-06-25 22:15 UTCGHSA enrichment
  33. 2026-06-25 13:49 UTCEPSS rescore
  34. 2026-06-25 13:49 UTCEPSS rescore
  35. 2026-06-25 09:49 UTCEG score recompute
  36. 2026-06-25 09:49 UTCGHSA enrichment
  37. 2026-06-24 21:33 UTCEG score recompute
  38. 2026-06-24 21:33 UTCGHSA enrichment
  39. 2026-06-24 14:05 UTCEPSS rescore
  40. 2026-06-24 14:05 UTCEPSS rescore
  41. 2026-06-24 11:55 UTCNVD updateCVSS v3 → 8.1 · severity → HIGH
  42. 2026-06-24 09:17 UTCEG score recompute
  43. 2026-06-24 09:17 UTCGHSA enrichment
  44. 2026-06-23 21:33 UTCEPSS rescore
  45. 2026-06-23 21:32 UTCEPSS rescore
  46. 2026-06-23 20:59 UTCEG score recompute
  47. 2026-06-23 20:59 UTCGHSA enrichment
  48. 2026-06-23 08:35 UTCEG score recompute
  49. 2026-06-23 08:34 UTCGHSA enrichment
  50. 2026-06-22 18:27 UTCEG score recompute
  51. 2026-06-22 18:27 UTCGHSA enrichment
  52. 2026-06-22 14:25 UTCEPSS rescore
  53. 2026-06-22 14:25 UTCEPSS rescore
  54. 2026-06-22 04:14 UTCEG score recompute
  55. 2026-06-22 04:14 UTCGHSA enrichment
  56. 2026-06-21 23:02 UTCMITRE cvelistV5CVSS v3 → 6.3 · CVSS v4 → 6.3 · severity → MEDIUM
  57. 2026-06-21 14:56 UTCEPSS rescore
  58. 2026-06-21 14:56 UTCEPSS rescore
  59. 2026-06-21 12:13 UTCEG score recompute
  60. 2026-06-21 12:13 UTCGHSA enrichment
  61. 2026-06-21 01:59 UTCEPSS rescore
  62. 2026-06-21 01:59 UTCEPSS rescore
  63. 2026-06-20 23:50 UTCEG score recompute
  64. 2026-06-20 23:50 UTCGHSA enrichment
  65. 2026-06-20 11:13 UTCEG score recompute
  66. 2026-06-20 11:13 UTCGHSA enrichment
  67. 2026-06-19 22:56 UTCEG score recompute
  68. 2026-06-19 22:56 UTCGHSA enrichment
  69. 2026-06-19 19:25 UTCEPSS rescore
  70. 2026-06-19 19:25 UTCEPSS rescore
  71. 2026-06-19 10:37 UTCEG score recompute
  72. 2026-06-19 10:37 UTCGHSA enrichment
  73. 2026-06-18 22:17 UTCEG score recompute
  74. 2026-06-18 22:17 UTCGHSA enrichment
  75. 2026-06-18 17:52 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-26239?
CVE-2026-26239 is a high vulnerability published on June 10, 2026. A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5208 and later
When was CVE-2026-26239 disclosed?
CVE-2026-26239 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26239 actively exploited?
CVE-2026-26239 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-26239?
CVE-2026-26239 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-26239?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26239, 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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