CVE-2025-66276

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 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(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

June 10, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Sep 12, 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 9× in last 7d / 53× 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 436 total refreshes for this CVE.

  1. 2026-09-15 03:10 UTCEPSS rescore
  2. 2026-09-14 08:35 UTCGHSA enrichment
  3. 2026-09-14 04:19 UTCEG score recompute
  4. 2026-09-14 04:19 UTCGHSA enrichment
  5. 2026-09-13 16:46 UTCEPSS rescore
  6. 2026-09-12 15:00 UTCEPSS rescore
  7. 2026-09-11 14:52 UTCEPSS rescore
  8. 2026-09-11 09:36 UTCEPSS rescore
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-08 22:00 UTCEPSS rescore
  11. 2026-09-07 16:00 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-04 05:06 UTCEPSS rescore
  14. 2026-09-02 14:11 UTCEPSS rescore
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-08-31 00:20 UTCEG score recompute
  17. 2026-08-31 00:20 UTCGHSA enrichment
  18. 2026-08-30 19:16 UTCEPSS rescore
  19. 2026-08-30 01:21 UTCEPSS rescore
  20. 2026-08-28 21:40 UTCEPSS rescore
  21. 2026-08-27 14:24 UTCEPSS rescore
  22. 2026-08-26 14:45 UTCEPSS rescore
  23. 2026-08-25 13:48 UTCEPSS rescore
  24. 2026-08-25 04:44 UTCGHSA enrichment
  25. 2026-08-25 00:30 UTCEG score recompute
Show 75 more
  1. 2026-08-25 00:30 UTCGHSA enrichment
  2. 2026-08-24 14:16 UTCEPSS rescore
  3. 2026-08-23 23:42 UTCGHSA enrichment
  4. 2026-08-23 19:27 UTCGHSA enrichment
  5. 2026-08-23 15:12 UTCGHSA enrichment
  6. 2026-08-23 10:57 UTCEG score recompute
  7. 2026-08-23 10:57 UTCGHSA enrichment
  8. 2026-08-23 00:18 UTCEPSS rescore
  9. 2026-08-21 23:52 UTCEG score recompute
  10. 2026-08-21 23:52 UTCGHSA enrichment
  11. 2026-08-21 23:48 UTCEPSS rescore
  12. 2026-08-21 19:35 UTCGHSA enrichment
  13. 2026-08-21 15:08 UTCGHSA enrichment
  14. 2026-08-21 10:52 UTCGHSA enrichment
  15. 2026-08-21 06:37 UTCGHSA enrichment
  16. 2026-08-21 02:09 UTCEG score recompute
  17. 2026-08-21 02:09 UTCGHSA enrichment
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 21:39 UTCGHSA enrichment
  20. 2026-08-20 17:24 UTCGHSA enrichment
  21. 2026-08-20 08:54 UTCEG score recompute
  22. 2026-08-20 08:54 UTCGHSA enrichment
  23. 2026-08-19 17:03 UTCEPSS rescore
  24. 2026-08-19 15:37 UTCEG score recompute
  25. 2026-08-19 15:37 UTCGHSA enrichment
  26. 2026-08-18 13:47 UTCEPSS rescore
  27. 2026-08-17 13:46 UTCEPSS rescore
  28. 2026-08-17 12:31 UTCGHSA enrichment
  29. 2026-08-17 08:15 UTCGHSA enrichment
  30. 2026-08-17 03:57 UTCGHSA enrichment
  31. 2026-08-16 23:42 UTCGHSA enrichment
  32. 2026-08-16 17:04 UTCEG score recompute
  33. 2026-08-16 17:04 UTCGHSA enrichment
  34. 2026-08-16 14:55 UTCEPSS rescore
  35. 2026-08-16 12:49 UTCGHSA enrichment
  36. 2026-08-16 08:34 UTCGHSA enrichment
  37. 2026-08-16 04:19 UTCEG score recompute
  38. 2026-08-16 04:19 UTCGHSA enrichment
  39. 2026-08-16 02:13 UTCEPSS rescore
  40. 2026-08-16 00:04 UTCGHSA enrichment
  41. 2026-08-15 19:43 UTCGHSA enrichment
  42. 2026-08-15 15:17 UTCGHSA enrichment
  43. 2026-08-15 11:02 UTCGHSA enrichment
  44. 2026-08-15 04:01 UTCEG score recompute
  45. 2026-08-15 04:01 UTCGHSA enrichment
  46. 2026-08-15 01:30 UTCEPSS rescore
  47. 2026-08-15 01:29 UTCEPSS rescore
  48. 2026-08-14 23:46 UTCGHSA enrichment
  49. 2026-08-14 19:31 UTCGHSA enrichment
  50. 2026-08-14 15:17 UTCGHSA enrichment
  51. 2026-08-14 11:02 UTCGHSA enrichment
  52. 2026-08-14 06:47 UTCGHSA enrichment
  53. 2026-08-14 02:33 UTCGHSA enrichment
  54. 2026-08-13 22:18 UTCEG score recompute
  55. 2026-08-13 22:18 UTCGHSA enrichment
  56. 2026-08-13 21:59 UTCEPSS rescore
  57. 2026-08-13 13:25 UTCGHSA enrichment
  58. 2026-08-13 09:09 UTCGHSA enrichment
  59. 2026-08-13 04:54 UTCGHSA enrichment
  60. 2026-08-13 00:39 UTCGHSA enrichment
  61. 2026-08-12 20:24 UTCGHSA enrichment
  62. 2026-08-12 16:10 UTCEG score recompute
  63. 2026-08-12 16:10 UTCGHSA enrichment
  64. 2026-08-12 13:50 UTCEPSS rescore
  65. 2026-08-12 11:48 UTCGHSA enrichment
  66. 2026-08-12 07:32 UTCGHSA enrichment
  67. 2026-08-12 02:28 UTCGHSA enrichment
  68. 2026-08-11 22:13 UTCGHSA enrichment
  69. 2026-08-11 17:58 UTCEG score recompute
  70. 2026-08-11 17:58 UTCGHSA enrichment
  71. 2026-08-11 13:42 UTCEPSS rescore
  72. 2026-08-11 13:10 UTCGHSA enrichment
  73. 2026-08-11 08:55 UTCGHSA enrichment
  74. 2026-08-11 04:40 UTCGHSA enrichment
  75. 2026-08-11 00:26 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 July 23, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 78.4% of all scored CVEs.
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

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