CVE-2026-22899

MEDIUMNVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-10. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

A NULL pointer dereference vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

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

CVSS v3
6.5
EG Score
6.5(high)
EPSS
19.8%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic
https://www.qnap.com/en/security-advisory/qsa-26-19

Vendor Advisories for CVE-2026-22899(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 23× in last 7d / 100× 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. 2026-07-06 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. 2026-07-05 13:24 UTCEG score recompute
  6. 2026-07-05 13:24 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 14:48 UTCEG score recompute
  9. 2026-07-04 14:48 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 16:25 UTCEG score recompute
  13. 2026-07-03 16:24 UTCGHSA enrichment
  14. 2026-07-02 18:00 UTCEG score recompute
  15. 2026-07-02 18:00 UTCGHSA enrichment
  16. 2026-07-01 19:14 UTCEG score recompute
  17. 2026-07-01 19:14 UTCGHSA enrichment
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-07-01 15:06 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 20:50 UTCEG score recompute
  23. 2026-06-30 20:50 UTCGHSA enrichment
  24. 2026-06-29 22:26 UTCEG score recompute
  25. 2026-06-29 22:26 UTCGHSA enrichment
Show 75 more
  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 00:03 UTCEG score recompute
  3. 2026-06-29 00:03 UTCGHSA enrichment
  4. 2026-06-28 14:07 UTCEPSS rescore
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-28 01:39 UTCEG score recompute
  9. 2026-06-28 01:39 UTCGHSA enrichment
  10. 2026-06-27 03:11 UTCEG score recompute
  11. 2026-06-27 03:11 UTCGHSA enrichment
  12. 2026-06-27 03:08 UTCEPSS rescore
  13. 2026-06-26 04:48 UTCEG score recompute
  14. 2026-06-26 04:48 UTCGHSA enrichment
  15. 2026-06-25 13:49 UTCEPSS rescore
  16. 2026-06-25 13:49 UTCEPSS rescore
  17. 2026-06-25 06:24 UTCEG score recompute
  18. 2026-06-25 06:24 UTCGHSA enrichment
  19. 2026-06-24 14:05 UTCEPSS rescore
  20. 2026-06-24 14:05 UTCEPSS rescore
  21. 2026-06-24 11:55 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  22. 2026-06-24 08:00 UTCEG score recompute
  23. 2026-06-24 08:00 UTCGHSA enrichment
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-23 21:32 UTCEPSS rescore
  26. 2026-06-23 08:39 UTCEG score recompute
  27. 2026-06-23 08:39 UTCGHSA enrichment
  28. 2026-06-22 14:25 UTCEPSS rescore
  29. 2026-06-22 14:25 UTCEPSS rescore
  30. 2026-06-22 09:34 UTCEG score recompute
  31. 2026-06-22 09:33 UTCGHSA enrichment
  32. 2026-06-21 23:02 UTCMITRE cvelistV5CVSS v3 → 1.3 · CVSS v4 → 1.3 · severity → LOW
  33. 2026-06-21 14:56 UTCEPSS rescore
  34. 2026-06-21 14:56 UTCEPSS rescore
  35. 2026-06-21 11:07 UTCEG score recompute
  36. 2026-06-21 11:07 UTCGHSA enrichment
  37. 2026-06-21 01:59 UTCEPSS rescore
  38. 2026-06-21 01:59 UTCEPSS rescore
  39. 2026-06-20 12:42 UTCEG score recompute
  40. 2026-06-20 12:42 UTCGHSA enrichment
  41. 2026-06-19 19:25 UTCEPSS rescore
  42. 2026-06-19 19:25 UTCEPSS rescore
  43. 2026-06-19 14:19 UTCEG score recompute
  44. 2026-06-19 14:19 UTCGHSA enrichment
  45. 2026-06-18 17:52 UTCEPSS rescore
  46. 2026-06-18 15:53 UTCEG score recompute
  47. 2026-06-18 15:53 UTCGHSA enrichment
  48. 2026-06-17 17:53 UTCEPSS rescore
  49. 2026-06-17 17:05 UTCEG score recompute
  50. 2026-06-17 17:05 UTCGHSA enrichment
  51. 2026-06-16 18:06 UTCEG score recompute
  52. 2026-06-16 18:06 UTCGHSA enrichment
  53. 2026-06-16 17:52 UTCEPSS rescore
  54. 2026-06-15 19:42 UTCEG score recompute
  55. 2026-06-15 19:41 UTCGHSA enrichment
  56. 2026-06-15 17:48 UTCEPSS rescore
  57. 2026-06-14 23:18 UTCEPSS rescore
  58. 2026-06-14 21:16 UTCEG score recompute
  59. 2026-06-14 21:16 UTCGHSA enrichment
  60. 2026-06-13 23:00 UTCEPSS rescore
  61. 2026-06-13 23:00 UTCEPSS rescore
  62. 2026-06-13 22:53 UTCEG score recompute
  63. 2026-06-13 22:53 UTCGHSA enrichment
  64. 2026-06-13 00:29 UTCEG score recompute▲ 1.20
  65. 2026-06-13 00:28 UTCGHSA enrichment
  66. 2026-06-12 23:12 UTCEPSS rescore
  67. 2026-06-12 14:12 UTCNVD updateCVSS v3 → 6.5
  68. 2026-06-12 02:05 UTCEG score recompute
  69. 2026-06-12 02:05 UTCGHSA enrichment
  70. 2026-06-11 14:00 UTCEPSS rescore
  71. 2026-06-11 03:41 UTCEG score recompute
  72. 2026-06-11 03:41 UTCGHSA enrichment
  73. 2026-06-10 22:18 UTCEPSS rescore
  74. 2026-06-10 05:18 UTCEG score recompute
  75. 2026-06-10 05:17 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-22899?
CVE-2026-22899 is a medium vulnerability published on June 10, 2026. A NULL pointer dereference vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5…
When was CVE-2026-22899 disclosed?
CVE-2026-22899 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-2026-22899 actively exploited?
CVE-2026-22899 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-22899?
CVE-2026-22899 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-22899?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22899, 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

Explore the affected products and dependency analysis for CVE-2026-22899

Explore →

Is Your Infrastructure Affected by CVE-2026-22899?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs