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CVE-2025-34277

Nagios Log Server code injection

9.8 CRITICALEPSS 2.15%
  1. Published30 Oct 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Nagios Log Server< 2024 · 2024

Remediation

Fixed in
Nagios Log Server≥ 2024

References

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Frequently asked

Is CVE-2025-34277 being actively exploited?

CVE-2025-34277 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.15%.

How severe is CVE-2025-34277?

CVE-2025-34277 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 2.15% probability of exploitation.

Which products are affected by CVE-2025-34277?

Affected products include Nagios Log Server.

How do I fix CVE-2025-34277?

Upgrade affected software to a fixed version, for example Nagios Log Server 2024 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-34277 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.