CVE-2026-78604

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Incorrect Permission Assignment for Critical Resource (CWE-732) in Elastic Agent can lead to local privilege escalation via Replace Binaries (CAPEC-642). On Windows systems where Elastic Agent is installed in unprivileged mode, resources used by the agent service are created with access controls broader than required. A local user could take advantage of this to cause the service to execute code of their choosing, ultimately obtaining SYSTEM-level privileges on the host.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

Elastic Agent 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-150) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/elastic-agent-8-19-21-9-4-6-9-5-2-security-update-esa-2026-150/390109

Vendor Advisories for CVE-2026-78604(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 27× in last 7d / 74× 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. 2026-09-20 14:18 UTCGHSA enrichment
  2. 2026-09-20 03:23 UTCGHSA enrichment
  3. 2026-09-19 16:28 UTCEG score recompute
  4. 2026-09-19 16:28 UTCGHSA enrichment
  5. 2026-09-19 05:33 UTCEG score recompute
  6. 2026-09-19 05:33 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 18:37 UTCGHSA enrichment
  9. 2026-09-18 07:33 UTCGHSA enrichment
  10. 2026-09-17 20:38 UTCEG score recompute
  11. 2026-09-17 20:38 UTCGHSA enrichment
  12. 2026-09-17 06:55 UTCGHSA enrichment
  13. 2026-09-16 20:00 UTCEG score recompute
  14. 2026-09-16 20:00 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 09:04 UTCEG score recompute
  17. 2026-09-16 09:04 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 21:56 UTCGHSA enrichment
  20. 2026-09-15 11:01 UTCEG score recompute
  21. 2026-09-15 11:01 UTCGHSA enrichment
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-14 23:40 UTCGHSA enrichment
  25. 2026-09-14 12:45 UTCGHSA enrichment
Show 49 more
  1. 2026-09-14 01:50 UTCEG score recompute
  2. 2026-09-14 01:50 UTCGHSA enrichment
  3. 2026-09-13 14:55 UTCGHSA enrichment
  4. 2026-09-13 03:59 UTCGHSA enrichment
  5. 2026-09-12 17:04 UTCEG score recompute
  6. 2026-09-12 17:04 UTCGHSA enrichment
  7. 2026-09-12 06:08 UTCGHSA enrichment
  8. 2026-09-11 19:12 UTCEG score recompute
  9. 2026-09-11 19:12 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 08:17 UTCGHSA enrichment
  13. 2026-09-10 21:22 UTCGHSA enrichment
  14. 2026-09-10 10:27 UTCEG score recompute
  15. 2026-09-10 10:27 UTCGHSA enrichment
  16. 2026-09-09 23:32 UTCGHSA enrichment
  17. 2026-09-09 10:09 UTCGHSA enrichment
  18. 2026-09-08 23:13 UTCEG score recompute
  19. 2026-09-08 23:13 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 08:26 UTCGHSA enrichment
  22. 2026-09-07 21:31 UTCEG score recompute
  23. 2026-09-07 21:31 UTCGHSA enrichment
  24. 2026-09-07 10:35 UTCGHSA enrichment
  25. 2026-09-06 23:39 UTCEG score recompute
  26. 2026-09-06 23:39 UTCGHSA enrichment
  27. 2026-09-06 13:48 UTCEPSS rescore
  28. 2026-09-06 12:39 UTCGHSA enrichment
  29. 2026-09-06 01:44 UTCEG score recompute
  30. 2026-09-06 01:44 UTCGHSA enrichment
  31. 2026-09-05 14:46 UTCGHSA enrichment
  32. 2026-09-05 03:50 UTCGHSA enrichment
  33. 2026-09-04 16:55 UTCEG score recompute
  34. 2026-09-04 16:55 UTCGHSA enrichment
  35. 2026-09-04 11:09 UTCEG score recompute
  36. 2026-09-04 11:09 UTCGHSA enrichment
  37. 2026-09-04 05:07 UTCEPSS rescore
  38. 2026-09-04 00:13 UTCGHSA enrichment
  39. 2026-09-03 13:16 UTCEG score recompute
  40. 2026-09-03 13:16 UTCGHSA enrichment
  41. 2026-09-03 04:56 UTCEG score recompute
  42. 2026-09-03 04:56 UTCGHSA enrichment
  43. 2026-09-02 19:32 UTCEG score recompute
  44. 2026-09-02 19:32 UTCGHSA enrichment
  45. 2026-09-02 16:20 UTCEG score recompute
  46. 2026-09-02 16:20 UTCGHSA enrichment
  47. 2026-09-02 15:31 UTCEG score recompute
  48. 2026-09-02 14:53 UTCEG score recompute
  49. 2026-09-02 14:51 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78604?
CVE-2026-78604 is a high vulnerability published on September 2, 2026. Incorrect Permission Assignment for Critical Resource (CWE-732) in Elastic Agent can lead to local privilege escalation via Replace Binaries (CAPEC-642). On Windows systems where Elastic Agent is installed in unprivileged mode, resources used by the agent service are created with access controls…
When was CVE-2026-78604 disclosed?
CVE-2026-78604 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78604 actively exploited?
CVE-2026-78604 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 99.0% of all scored CVEs.
What is the CVSS score of CVE-2026-78604?
CVE-2026-78604 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-78604?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78604, 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-2026-78604

Explore →

Is Your Infrastructure Affected by CVE-2026-78604?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs