CVE-2026-64878

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-21. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: None knownExposed: 0

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

Unvalidated input in asset filter parameters allows shell metacharacters to escape command argument handling, resulting in remote code execution as a low-privileged OS user via the Analysis REST endpoint.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

July 21, 2026

Last Modified

August 18, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
Patch available.
generic Patch Available

[R4] 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-2026-64878(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 23× in last 7d / 132× 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 316 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64878?
CVE-2026-64878 is a critical vulnerability published on July 21, 2026. Unvalidated input in asset filter parameters allows shell metacharacters to escape command argument handling, resulting in remote code execution as a low-privileged OS user via the Analysis REST endpoint.
When was CVE-2026-64878 disclosed?
CVE-2026-64878 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-2026-64878 actively exploited?
CVE-2026-64878 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 45.5% of all scored CVEs.
What is the CVSS score of CVE-2026-64878?
CVE-2026-64878 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-64878?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64878, 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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