CVE-2025-34277Network attack vector

Authenticated code execution via malformed dashboard IDs

Published Oct 30, 2025 · Updated Nov 17, 2025

Code injection in Nagios Log Server before 2024R1.3.1 allows remote authenticated users to execute code through malformed dashboard IDs. The dashboard-handling path fails to validate dashboard ID values before forwarding them to an internal API, which executes attacker-controlled data. Low-privileged access is sufficient, and successful exploitation runs arbitrary code in the Log Server process context.

CVSS severity9.4
Critical
EPSS probability2.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Nagios Log Server before 2024R1.3.1 allows remote authenticated users to execute code through malformed dashboard IDs. The dashboard-handling path fails to validate dashboard ID values before forwarding them to an internal API, which executes attacker-controlled data. Low-privileged access is sufficient, and successful exploitation runs arbitrary code in the Log Server process context.

The record

CVE
CVE-2025-34277
Published
Oct 30, 2025
Updated
Nov 17, 2025
Vendor
Nagios Enterprises, LLC
Product
Nagios Log Server
Classifications
CWE-94, CAPEC-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2024R1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nagios Enterprises, LLC · Nagios Log Serverversion=0 <2024R1.3.1

Published CVSS scores

9.4VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-77Manipulating User-Controlled Variables
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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