Nagios XI < 2024R1.4.2 Overly Permissive Permissions on Systemd Unit Files (CVE-2025-34135) | HOL Guard CVE

Medium · CVSS 5.1CVE-2025-34135

Nagios XI < 2024R1.4.2 Overly Permissive Permissions on Systemd Unit Files

Answer in brief

CVE-2025-34135 records a Medium severity (CVSS 5.1) vulnerability in Nagios XI < 2024R1.4.2 Overly Permissive Permissions on Systemd Unit Files. The current sources do not mark it as known exploited. The current feed maps Nagios/XI (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2025Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Sep 30, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Nagios/XI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Nagios/XIgeneric	>=0 <2024R1.4.2	2024R1.4.2

Recommended response

Check inventory. Check lockfiles and deployed manifests for Nagios/XI.
Review the reported fix. Source-reported solution: Nagios addresses this vulnerability as "Nagios XI had some Systemd unit files with permission sets that were too permissive" and "Fixed a permissions insecurity for nagios.service (removed execute permissions)."

Evidence timeline and material changes

Published upstream
Oct 30, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 30, 2026

Sources and claim methodology

Upstream source description

Nagios XI versions prior to 2024R1.4.2 configure some systemd unit files with permission sets that were too permissive. In particular, the nagios.service unit had executable permissions that were not required. Overly permissive permissions on service unit files can broaden local attack surface by enabling unintended execution behaviors or facilitating abuse of service operations when combined with other weaknesses.

Quoted source text, attributed separately from HOL analysis.