CVE-2025-34277 CRITICAL

CVE-2025-34277: Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID

Vendor Nagios
Product Log Server
Weakness CWE-94 · Code injection
Published October 30, 2025
Last update November 17, 2025
View on NVD All CVEs

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 30, 2025 CVE published
November 17, 2025 Record updated