ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an authenticated low-privilege user to create alert notifications for firewalls outside their assigned scope.
CVE-2026-84789
HIGHPre-NVD 7.17.1—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-23. a secondary CVSS source baseline 7.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(high)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: 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 computedSeverity71% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 23, 2026
Last Modified
September 23, 2026
Advisory Details (1)
Auto-updated Sep 23, 2026No patch confirmed yet.
generic
Security Updates - CVE-2026-19599 | ManageEngine OpManager
https://www.manageengine.com/itom/advisory/cve-2026-84789.htmlVendor Advisories for CVE-2026-84789(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 8× in last 7d / 8× 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.
- 2026-09-23 18:25 UTCGHSA enrichment
- 2026-09-23 13:18 UTCEG score recompute
- 2026-09-23 13:18 UTCGHSA enrichment
- 2026-09-23 13:01 UTCEG score recompute
- 2026-09-23 13:01 UTCGHSA enrichment
- 2026-09-23 12:30 UTCEG score recompute
- 2026-09-23 11:56 UTCEG score recompute
- 2026-09-23 11:56 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-639
Frequently asked(4)
What is CVE-2026-84789?
CVE-2026-84789 is a high vulnerability published on September 23, 2026. ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an authenticated low-privilege user to create alert notifications for firewalls outside their assigned scope.
When was CVE-2026-84789 disclosed?
CVE-2026-84789 was first published in the National Vulnerability Database on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-84789?
CVE-2026-84789 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-84789?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84789, 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-2026-84789
Is Your Infrastructure Affected by CVE-2026-84789?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.