CVE-2026-64878

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH 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(high)
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
42%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Jul 24, 2026
Patch available.
generic Patch Available

[R3] 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 41× in last 7d / 49× 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. 2026-07-30 04:27 UTCEG score recompute
  2. 2026-07-30 04:27 UTCGHSA enrichment
  3. 2026-07-30 01:30 UTCEPSS rescore
  4. 2026-07-30 01:30 UTCEPSS rescore
  5. 2026-07-30 00:11 UTCGHSA enrichment
  6. 2026-07-29 19:55 UTCGHSA enrichment
  7. 2026-07-29 15:24 UTCGHSA enrichment
  8. 2026-07-29 11:07 UTCGHSA enrichment
  9. 2026-07-29 06:51 UTCGHSA enrichment
  10. 2026-07-29 02:35 UTCGHSA enrichment
  11. 2026-07-28 22:20 UTCGHSA enrichment
  12. 2026-07-28 17:39 UTCEG score recompute
  13. 2026-07-28 17:39 UTCGHSA enrichment
  14. 2026-07-28 15:37 UTCEPSS rescore
  15. 2026-07-28 13:23 UTCGHSA enrichment
  16. 2026-07-28 09:06 UTCGHSA enrichment
  17. 2026-07-28 04:49 UTCGHSA enrichment
  18. 2026-07-28 00:33 UTCGHSA enrichment
  19. 2026-07-27 20:17 UTCGHSA enrichment
  20. 2026-07-27 15:59 UTCEG score recompute
  21. 2026-07-27 15:59 UTCGHSA enrichment
  22. 2026-07-27 14:14 UTCEPSS rescore
  23. 2026-07-27 11:42 UTCGHSA enrichment
  24. 2026-07-27 07:26 UTCGHSA enrichment
  25. 2026-07-27 03:09 UTCGHSA enrichment
Show 24 more
  1. 2026-07-26 22:51 UTCGHSA enrichment
  2. 2026-07-26 18:34 UTCEG score recompute
  3. 2026-07-26 18:34 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:17 UTCEG score recompute
  7. 2026-07-26 14:17 UTCGHSA enrichment
  8. 2026-07-26 10:01 UTCGHSA enrichment
  9. 2026-07-26 04:19 UTCEG score recompute
  10. 2026-07-26 04:19 UTCGHSA enrichment
  11. 2026-07-25 14:18 UTCEPSS rescore
  12. 2026-07-25 14:18 UTCEPSS rescore
  13. 2026-07-24 14:18 UTCEPSS rescore
  14. 2026-07-24 14:18 UTCEPSS rescore
  15. 2026-07-23 14:18 UTCEPSS rescore
  16. 2026-07-23 14:18 UTCEPSS rescore
  17. 2026-07-23 03:22 UTCEG score recompute
  18. 2026-07-22 22:59 UTCEG score recompute
  19. 2026-07-22 22:59 UTCGHSA enrichment
  20. 2026-07-22 14:08 UTCEPSS rescore
  21. 2026-07-22 14:08 UTCEPSS rescore
  22. 2026-07-21 21:25 UTCEG score recompute
  23. 2026-07-21 20:15 UTCEG score recompute
  24. 2026-07-21 20:13 UTCMITRE cvelistV5first tracked

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 July 24, 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 57.6% 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-64878

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