CVE-2026-55721

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-01. a secondary CVSS source baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: None knownExposed: 0

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

Storage Concentrator (SC & SCVM) is vulnerable to SQL injection through cookie values processed by the login.pl and debug.pl scripts. The cookie value is incorporated directly into database queries without adequate sanitization, allowing an unauthenticated remote attacker to manipulate those queries and extract sensitive information from the underlying database, including session tokens, password hashes, and stored secret keys.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity93% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Advisory Details (3)

Auto-updated Sep 3, 2026
Patch available. Sources: cisa.
cisa Patch Available

StoneFly Storage Concentrator | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-06
generic

Contact Us | StoneFly

https://stonefly.com/contact-us/
generic

CSAF/csaf_files/OT/white/2026/icsa-26-181-06.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-06.json

Vendor Advisories for CVE-2026-55721(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 9× in last 7d / 116× 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 394 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-55721?
CVE-2026-55721 is a critical vulnerability published on July 1, 2026. Storage Concentrator (SC & SCVM) is vulnerable to SQL injection through cookie values processed by the login.pl and debug.pl scripts. The cookie value is incorporated directly into database queries without adequate sanitization, allowing an unauthenticated remote attacker to manipulate those…
When was CVE-2026-55721 disclosed?
CVE-2026-55721 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55721 actively exploited?
CVE-2026-55721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.9% of all scored CVEs.
What is the CVSS score of CVE-2026-55721?
CVE-2026-55721 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-55721?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55721, 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.

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