CVE-2026-77089

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-08. 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.

Command Center API contained an authentication bypass issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Command Center.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

CV_2026_07_1

https://documentation.commvault.com/securityadvisories/CV_2026_07_1.html

Vendor Advisories for CVE-2026-77089(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 54× in last 7d / 99× 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. 2026-09-19 21:01 UTCGHSA enrichment
  2. 2026-09-19 17:19 UTCEG score recompute
  3. 2026-09-19 17:19 UTCGHSA enrichment
  4. 2026-09-19 13:37 UTCGHSA enrichment
  5. 2026-09-19 09:54 UTCGHSA enrichment
  6. 2026-09-19 05:43 UTCGHSA enrichment
  7. 2026-09-19 02:00 UTCGHSA enrichment
  8. 2026-09-18 22:17 UTCEG score recompute
  9. 2026-09-18 22:17 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 18:35 UTCGHSA enrichment
  12. 2026-09-18 14:50 UTCGHSA enrichment
  13. 2026-09-18 11:08 UTCGHSA enrichment
  14. 2026-09-18 07:26 UTCGHSA enrichment
  15. 2026-09-18 03:44 UTCGHSA enrichment
  16. 2026-09-18 00:02 UTCGHSA enrichment
  17. 2026-09-17 20:20 UTCEG score recompute
  18. 2026-09-17 20:20 UTCGHSA enrichment
  19. 2026-09-17 13:18 UTCGHSA enrichment
  20. 2026-09-17 09:36 UTCGHSA enrichment
  21. 2026-09-17 05:53 UTCGHSA enrichment
  22. 2026-09-17 02:09 UTCGHSA enrichment
  23. 2026-09-16 22:27 UTCGHSA enrichment
  24. 2026-09-16 18:18 UTCEG score recompute
  25. 2026-09-16 18:18 UTCGHSA enrichment
Show 74 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 13:55 UTCGHSA enrichment
  3. 2026-09-16 09:36 UTCGHSA enrichment
  4. 2026-09-16 05:53 UTCEG score recompute
  5. 2026-09-16 05:53 UTCGHSA enrichment
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-16 02:11 UTCGHSA enrichment
  8. 2026-09-15 22:29 UTCGHSA enrichment
  9. 2026-09-15 18:47 UTCGHSA enrichment
  10. 2026-09-15 15:04 UTCGHSA enrichment
  11. 2026-09-15 11:16 UTCGHSA enrichment
  12. 2026-09-15 07:34 UTCGHSA enrichment
  13. 2026-09-15 03:52 UTCEG score recompute
  14. 2026-09-15 03:52 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 00:10 UTCGHSA enrichment
  17. 2026-09-14 20:28 UTCGHSA enrichment
  18. 2026-09-14 16:45 UTCGHSA enrichment
  19. 2026-09-14 13:03 UTCGHSA enrichment
  20. 2026-09-14 09:21 UTCGHSA enrichment
  21. 2026-09-14 05:39 UTCGHSA enrichment
  22. 2026-09-14 01:57 UTCGHSA enrichment
  23. 2026-09-13 22:15 UTCGHSA enrichment
  24. 2026-09-13 18:33 UTCEG score recompute
  25. 2026-09-13 18:33 UTCGHSA enrichment
  26. 2026-09-13 14:50 UTCGHSA enrichment
  27. 2026-09-13 10:57 UTCGHSA enrichment
  28. 2026-09-13 07:15 UTCGHSA enrichment
  29. 2026-09-13 03:33 UTCGHSA enrichment
  30. 2026-09-12 23:51 UTCGHSA enrichment
  31. 2026-09-12 20:09 UTCGHSA enrichment
  32. 2026-09-12 16:27 UTCEG score recompute
  33. 2026-09-12 16:27 UTCGHSA enrichment
  34. 2026-09-12 15:02 UTCEPSS rescore
  35. 2026-09-12 12:45 UTCGHSA enrichment
  36. 2026-09-12 09:03 UTCGHSA enrichment
  37. 2026-09-12 05:21 UTCGHSA enrichment
  38. 2026-09-12 01:39 UTCGHSA enrichment
  39. 2026-09-11 21:57 UTCGHSA enrichment
  40. 2026-09-11 18:15 UTCEG score recompute
  41. 2026-09-11 18:15 UTCGHSA enrichment
  42. 2026-09-11 14:53 UTCEPSS rescore
  43. 2026-09-11 14:32 UTCEG score recompute▲ 0.50
  44. 2026-09-11 14:32 UTCGHSA enrichment
  45. 2026-09-11 14:32 UTCNVD updateCVSS v3 → 9.8
  46. 2026-09-11 12:15 UTCEG score recompute
  47. 2026-09-11 12:15 UTCGHSA enrichment
  48. 2026-09-11 08:33 UTCGHSA enrichment
  49. 2026-09-11 04:51 UTCGHSA enrichment
  50. 2026-09-11 01:08 UTCGHSA enrichment
  51. 2026-09-10 21:25 UTCGHSA enrichment
  52. 2026-09-10 17:43 UTCGHSA enrichment
  53. 2026-09-10 14:01 UTCGHSA enrichment
  54. 2026-09-10 10:19 UTCEG score recompute
  55. 2026-09-10 10:19 UTCGHSA enrichment
  56. 2026-09-10 09:35 UTCEPSS rescore
  57. 2026-09-10 06:37 UTCGHSA enrichment
  58. 2026-09-10 02:55 UTCGHSA enrichment
  59. 2026-09-09 23:12 UTCGHSA enrichment
  60. 2026-09-09 17:21 UTCGHSA enrichment
  61. 2026-09-09 13:38 UTCEG score recompute
  62. 2026-09-09 13:38 UTCGHSA enrichment
  63. 2026-09-09 12:50 UTCEG score recompute
  64. 2026-09-09 12:50 UTCGHSA enrichment
  65. 2026-09-09 09:14 UTCGHSA enrichment
  66. 2026-09-09 05:32 UTCEG score recompute
  67. 2026-09-09 05:32 UTCGHSA enrichment
  68. 2026-09-09 04:41 UTCEG score recompute
  69. 2026-09-09 04:41 UTCGHSA enrichment
  70. 2026-09-09 02:45 UTCGHSA enrichment
  71. 2026-09-08 23:03 UTCGHSA enrichment
  72. 2026-09-08 13:31 UTCEG score recompute
  73. 2026-09-08 12:26 UTCEG score recompute
  74. 2026-09-08 12:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77089?
CVE-2026-77089 is a critical vulnerability published on September 8, 2026. Command Center API contained an authentication bypass issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Command Center.
When was CVE-2026-77089 disclosed?
CVE-2026-77089 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77089 actively exploited?
CVE-2026-77089 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 73.8% of all scored CVEs.
What is the CVSS score of CVE-2026-77089?
CVE-2026-77089 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-77089?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77089, 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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