CVE-2026-64877

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-21. a secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

An authenticated non-admin user can exploit a SQL injection flaw in the ticketing REST API to access sensitive data stored in the appliance database.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

July 21, 2026

Last Modified

August 18, 2026

Advisory Details (1)

Auto-updated Jul 21, 2026
Patch available.
generic Patch Available

[R2] Stand-alone Security Patch Available for Tenable Security Center Versions 6.6.0, 6.7.2 and 6.8.0: SC202607.1 - Security Advisory | Tenable®

https://www.tenable.com/security/tns-2026-19

Vendor Advisories for CVE-2026-64877(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 19× in last 7d / 103× 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 140 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64877?
CVE-2026-64877 is a high vulnerability published on July 21, 2026. An authenticated non-admin user can exploit a SQL injection flaw in the ticketing REST API to access sensitive data stored in the appliance database.
When was CVE-2026-64877 disclosed?
CVE-2026-64877 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64877 actively exploited?
CVE-2026-64877 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 75.8% of all scored CVEs.
What is the CVSS score of CVE-2026-64877?
CVE-2026-64877 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-64877?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64877, 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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