CVE-2025-34277: log server Code Injection (CVSS 9.8)

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.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
nagios	log_server	< 2024
nagios	log_server	All
nagios	log_server	All
nagios	log_server	All
nagios	log_server	All
nagios	log_server	All
nagios	log_server	All

References

Other References

https://www.nagios.com/changelog/#log-server-2024R1 https://www.nagios.com/products/security/#log-server https://www.vulncheck.com/advisories/nagios-log-server-rce-via-malformed-dashboard-id

Frequently Asked Questions

What is CVE-2025-34277? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-34277? +

CVE-2025-34277 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-34277? +

CVE-2025-34277 affects products from nagios, specifically: log_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34277? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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