CVE-2025-34298Network attack vectorHinoki check available

Authenticated privilege escalation via invalid email update

Published Oct 30, 2025 · Updated Oct 30, 2025

Privilege escalation in Nagios Log Server before 2024R1.3.2 allows remote authenticated users to gain elevated access via an invalid email update. The account email-change workflow accepts an invalid address without preserving authorization tied to email identity, creating an inconsistent account state. Low-privileged account access is required, and exploitation grants elevated privileges or bypasses intended access controls.

CVSS severity8.7
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Privilege escalation in Nagios Log Server before 2024R1.3.2 allows remote authenticated users to gain elevated access via an invalid email update. The account email-change workflow accepts an invalid address without preserving authorization tied to email identity, creating an inconsistent account state. Low-privileged account access is required, and exploitation grants elevated privileges or bypasses intended access controls.

The record

CVE
CVE-2025-34298
Published
Oct 30, 2025
Updated
Oct 30, 2025
Vendor
Nagios Enterprises, LLC
Product
Nagios Log Server
Classifications
CWE-281, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 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 <2024R1.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nagios Enterprises, LLC · Nagios Log Serverversion=0 <2024R1.3.2

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

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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-281Improper Preservation of Permissions
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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