CVE-2026-73439

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz policy is present on the system, then gNMI may fail to correctly enforce the rules in this policy if both a group rule and a user rule for the same path is present in the policy. Under certain conditions, this can lead to an authenticated user gaining unauthorized permission to read or write gNMI paths that the Pathz policy is intended to restrict.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 17, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Security Advisory 0164 - Arista

https://www.arista.com/en/support/advisories-notices/security-advisory/24720-security-advisory-0164

Vendor Advisories for CVE-2026-73439(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 21× in last 7d / 21× 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 03:56 UTCEG score recompute
  2. 2026-09-19 03:56 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 16:07 UTCGHSA enrichment
  5. 2026-09-18 03:59 UTCEG score recompute
  6. 2026-09-18 03:59 UTCGHSA enrichment
  7. 2026-09-17 16:09 UTCGHSA enrichment
  8. 2026-09-17 04:20 UTCEG score recompute
  9. 2026-09-17 04:20 UTCGHSA enrichment
  10. 2026-09-17 04:05 UTCEG score recompute
  11. 2026-09-17 04:05 UTCGHSA enrichment
  12. 2026-09-16 19:12 UTCGHSA enrichment
  13. 2026-09-16 15:25 UTCEG score recompute
  14. 2026-09-16 15:25 UTCGHSA enrichment
  15. 2026-09-16 15:01 UTCEG score recompute
  16. 2026-09-16 15:01 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 09:31 UTCEG score recompute
  19. 2026-09-16 09:31 UTCGHSA enrichment
  20. 2026-09-16 08:27 UTCEG score recompute
  21. 2026-09-16 08:26 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73439?
CVE-2026-73439 is a high vulnerability published on September 16, 2026. On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz policy is present on the system, then gNMI may fail to correctly enforce the rules in this policy if both a group rule and a user rule for…
When was CVE-2026-73439 disclosed?
CVE-2026-73439 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73439 actively exploited?
CVE-2026-73439 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 73.4% of all scored CVEs.
What is the CVSS score of CVE-2026-73439?
CVE-2026-73439 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73439?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73439, 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-2026-73439

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