VDB-330663 · CVE-2025-34135 · WID-SEC-2025-2459

Nagios XI up to 2024R1.4.1 systemd permission assignment

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Nagios XI up to 2024R1.4.1. This vulnerability affects unknown code of the component systemd. Performing a manipulation results in permission assignment. This vulnerability was named CVE-2025-34135. The attack needs to be approached locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Nagios XI up to 2024R1.4.1. This affects an unknown code of the component systemd. The manipulation with an unknown input leads to a permission assignment vulnerability. CWE is classifying the issue as CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at nagios.com. This vulnerability is uniquely identified as CVE-2025-34135 since 04/15/2025. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2024R1.4.2 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2459). Be aware that VulDB is the high quality source for vulnerability data.

Affected

Nagios Enterprises Nagios XI

Productinfo

Type

Log Management Software

Vendor

Nagios

Name

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission assignment
CWE: CWE-732 / CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: XI 2024R1.4.2

Timelineinfo

04/15/2025 CVE reserved
10/31/2025 +199 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
11/08/2025 +8 days VulDB entry last update

Sourcesinfo

Advisory: nagios.com
Status: Confirmed

CVE: CVE-2025-34135 (🔒)
GCVE (CVE): GCVE-0-2025-34135
GCVE (VulDB): GCVE-100-330663
CERT Bund: WID-SEC-2025-2459 - Nagios Enterprises Nagios XI: Mehrere Schwachstellen

Entryinfo

Created: 10/31/2025 07:43
Updated: 11/08/2025 05:14
Changes: 10/31/2025 07:43 (68), 10/31/2025 12:52 (7), 11/08/2025 05:14 (11)
Complete: 🔍
Cache ID: 216::103