CVE-2025-66276

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-10. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

QuTS hero is not affected.

We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later

CVSS v3
9.8
EG Score
9.8(high)
EPSS
20.8%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 12, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
No patch confirmed yet.
generic

Vulnerability in legacy QTS with NFS service enabled - Security Advisory | QNAP

https://www.qnap.com/en/security-advisory/qsa-25-56

Vendor Advisories for CVE-2025-66276(1)

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

Data Freshness Timeline

(refreshed 63× in last 7d / 310× 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 310 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 00:13 UTCEG score recompute
  6. 2026-07-06 00:13 UTCGHSA enrichment
  7. 2026-07-05 19:57 UTCEG score recompute
  8. 2026-07-05 19:57 UTCGHSA enrichment
  9. 2026-07-05 15:38 UTCEG score recompute
  10. 2026-07-05 15:38 UTCGHSA enrichment
  11. 2026-07-05 11:21 UTCEG score recompute
  12. 2026-07-05 11:21 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-05 00:01 UTCEG score recompute
  16. 2026-07-05 00:01 UTCGHSA enrichment
  17. 2026-07-04 19:25 UTCEG score recompute
  18. 2026-07-04 19:25 UTCGHSA enrichment
  19. 2026-07-04 12:00 UTCEG score recompute
  20. 2026-07-04 12:00 UTCGHSA enrichment
  21. 2026-07-03 23:55 UTCEG score recompute
  22. 2026-07-03 23:55 UTCGHSA enrichment
  23. 2026-07-03 19:40 UTCEG score recompute
  24. 2026-07-03 19:40 UTCGHSA enrichment
  25. 2026-07-03 15:26 UTCEG score recompute
Show 75 more
  1. 2026-07-03 15:25 UTCGHSA enrichment
  2. 2026-07-03 08:16 UTCEG score recompute
  3. 2026-07-03 08:16 UTCGHSA enrichment
  4. 2026-07-03 01:32 UTCEG score recompute
  5. 2026-07-03 01:32 UTCGHSA enrichment
  6. 2026-07-02 21:11 UTCEG score recompute
  7. 2026-07-02 21:11 UTCGHSA enrichment
  8. 2026-07-02 16:57 UTCEG score recompute
  9. 2026-07-02 16:57 UTCGHSA enrichment
  10. 2026-07-02 12:39 UTCEG score recompute
  11. 2026-07-02 12:39 UTCGHSA enrichment
  12. 2026-07-02 08:20 UTCEG score recompute
  13. 2026-07-02 08:19 UTCGHSA enrichment
  14. 2026-07-02 04:04 UTCEG score recompute
  15. 2026-07-02 04:04 UTCGHSA enrichment
  16. 2026-07-01 23:48 UTCEG score recompute
  17. 2026-07-01 23:48 UTCGHSA enrichment
  18. 2026-07-01 19:33 UTCEG score recompute
  19. 2026-07-01 19:33 UTCGHSA enrichment
  20. 2026-07-01 15:18 UTCEG score recompute
  21. 2026-07-01 15:18 UTCGHSA enrichment
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-07-01 15:06 UTCEPSS rescore
  24. 2026-07-01 11:02 UTCEG score recompute
  25. 2026-07-01 11:02 UTCGHSA enrichment
  26. 2026-07-01 06:47 UTCEG score recompute
  27. 2026-07-01 06:47 UTCGHSA enrichment
  28. 2026-07-01 02:31 UTCEG score recompute
  29. 2026-07-01 02:31 UTCGHSA enrichment
  30. 2026-06-30 23:22 UTCEPSS rescore
  31. 2026-06-30 22:16 UTCEG score recompute
  32. 2026-06-30 22:16 UTCGHSA enrichment
  33. 2026-06-30 18:01 UTCEG score recompute
  34. 2026-06-30 18:01 UTCGHSA enrichment
  35. 2026-06-30 13:45 UTCEG score recompute
  36. 2026-06-30 13:45 UTCGHSA enrichment
  37. 2026-06-30 08:46 UTCEG score recompute
  38. 2026-06-30 08:46 UTCGHSA enrichment
  39. 2026-06-30 04:20 UTCEG score recompute
  40. 2026-06-30 04:19 UTCGHSA enrichment
  41. 2026-06-30 00:04 UTCEG score recompute
  42. 2026-06-30 00:04 UTCGHSA enrichment
  43. 2026-06-29 19:48 UTCEG score recompute
  44. 2026-06-29 19:48 UTCGHSA enrichment
  45. 2026-06-29 15:33 UTCEG score recompute
  46. 2026-06-29 15:33 UTCGHSA enrichment
  47. 2026-06-29 14:06 UTCEPSS rescore
  48. 2026-06-29 14:06 UTCEPSS rescore
  49. 2026-06-29 11:07 UTCEG score recompute
  50. 2026-06-29 11:07 UTCGHSA enrichment
  51. 2026-06-29 06:51 UTCEG score recompute
  52. 2026-06-29 06:51 UTCGHSA enrichment
  53. 2026-06-28 23:59 UTCEG score recompute
  54. 2026-06-28 23:59 UTCGHSA enrichment
  55. 2026-06-28 19:42 UTCEG score recompute
  56. 2026-06-28 19:42 UTCGHSA enrichment
  57. 2026-06-28 15:27 UTCEG score recompute
  58. 2026-06-28 15:27 UTCGHSA enrichment
  59. 2026-06-28 14:07 UTCEPSS rescore
  60. 2026-06-28 14:07 UTCEPSS rescore
  61. 2026-06-28 11:11 UTCEG score recompute
  62. 2026-06-28 11:11 UTCGHSA enrichment
  63. 2026-06-28 06:56 UTCEG score recompute
  64. 2026-06-28 06:56 UTCGHSA enrichment
  65. 2026-06-28 04:56 UTCEPSS rescore
  66. 2026-06-28 04:55 UTCEPSS rescore
  67. 2026-06-28 02:41 UTCEG score recompute
  68. 2026-06-28 02:41 UTCGHSA enrichment
  69. 2026-06-27 22:26 UTCEG score recompute
  70. 2026-06-27 22:26 UTCGHSA enrichment
  71. 2026-06-27 18:11 UTCEG score recompute
  72. 2026-06-27 18:11 UTCGHSA enrichment
  73. 2026-06-27 13:56 UTCEG score recompute
  74. 2026-06-27 13:55 UTCGHSA enrichment
  75. 2026-06-27 09:40 UTCEG score recompute

Frequently asked(5)

What is CVE-2025-66276?
CVE-2025-66276 is a critical vulnerability published on June 10, 2026. QuTS hero is not affected. We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later
When was CVE-2025-66276 disclosed?
CVE-2025-66276 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on June 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-66276 actively exploited?
CVE-2025-66276 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-66276?
CVE-2025-66276 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2025-66276?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66276, 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-2025-66276

Explore →

Is Your Infrastructure Affected by CVE-2025-66276?

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

Start Free Scan →Browse All CVEs