CVE-2025-34277

Name: CVE-2025-34277
Creator: NVD / NIST
Published: 2025-10-30T22:15:48.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.4/10EPSS 1.80%

Last modified Jun 17, 2026

CVE-2025-34277 is a critical-severity vulnerability rated 9.4/10 on the CVSS scale. 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.. EPSS estimates a 1.80% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.4/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

1.80%

75.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions	Update
Nagios	Log Server	< 2024	—
Nagios	Log Server	2024	R1

References

https://www.nagios.com/changelog/#log-server-2024R1Release Notes
https://www.nagios.com/products/security/#log-serverProduct
https://www.vulncheck.com/advisories/nagios-log-server-rce-via-malformed-dashboard-idThird Party Advisory

Timeline

Published: Oct 30, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-34277?

How severe is CVE-2025-34277?

CVE-2025-34277 has a CVSS score of 9.4/10 (CRITICAL severity). The EPSS model estimates a 1.80% probability of exploitation in the next 30 days.

How do I fix CVE-2025-34277?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-34277?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST