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TI-2020-17434 Aliases CVE-2020-28900GHSA-j8w7-pmfx-jm24

Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and…

Priority MEDIUM 48CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-345.

Summary

Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to an untrusted update package to upgrade_to_latest.sh.

Why it matters now

EPSS 0.03115 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:*up to 4.1.8VulnerableNagios
cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*up to 5.7.5VulnerableNagios
  • cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:* Versions up to 4.1.8 Vulnerable ·Nagios
  • cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* Versions up to 5.7.5 Vulnerable ·Nagios

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-28900
  2. 2026-10-03 Alias added: GHSA-j8w7-pmfx-jm24

References

Exploit 1

Advisory 2

  • TI-2020-17439 Improper Input Validation in Nagios Fusion 4.1.8 and earlier allows an authenticated… CVSS 3.1HIGH 8.8
  • TI-2020-17435 Command Injection in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation or… CVSS 3.1CRITICAL 9.8
  • TI-2020-17436 Command Injection in Nagios Fusion 4.1.8 and earlier allows Privilege Escalation from apache to root in cmd_subsys.php. CVSS 3.1CRITICAL 9.8
  • TI-2020-17442 Command Injection in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to nagios. CVSS 3.1CRITICAL 9.8
  • TI-2020-17438 Execution with Unnecessary Privileges in Nagios Fusion 4.1.8 and earlier allows for… CVSS 3.1CRITICAL 9.8
  • TI-2020-17441 Incorrect SSL certificate validation in Nagios Fusion 4.1.8 and earlier allows for… CVSS 3.1CRITICAL 9.8
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences