Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID

Advisories

severity: critical
date: October 30, 2025
Affecting: Log Server < 2024R1.3.1
CVE: CVE-2025-34277
CWE: CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS: 9.4
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References: Nagios Log Server Disclosures
Nagios Log Server Changelog
Credit: Institute of Information Engineering, CAS
Description: Nagios Log Server versions prior to 2024R1.3.1 contain a code injection vulnerability where malformed dashboard ID values are not properly validated before being forwarded to an internal API. An attacker able to supply crafted dashboard ID values can cause the system to execute attacker-controlled data, leading to arbitrary code execution in the context of the Log Server process.