8.8

CVE-2025-34298: nagios log_server Improper Preservation of Permissions

CVSS: 8.8v3.1HighAnalyzed
Published 30-10-2025Last modified 17-11-2025

Vulnerability summary

CVE-2025-34298 is a high (CVSS 8.8) Improper Preservation of Permissions vulnerability in nagios log_server. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.7% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.70%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-10-2025
    PublishedVulnerability first disclosed.
  2. 17-11-2025
    Last modifiedVulnerability information updated.

Description

Nagios Log Server versions prior to 2024R1.3.2 contain a privilege escalation vulnerability in the account email-change workflow. A user could set their own email to an invalid value and, due to insufficient validation and authorization checks tied to email identity state, trigger inconsistent account state that granted elevated privileges or bypassed intended access controls.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.70%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

+0.05 pp

From 0.66% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nagios1 product
  • log_server< 2024R1.3.2 | < 2024 | 2024:r1 | 2024:r1.0.1 | 2024:r1.0.2 | 2024:r1.1 | 2024:r1.2 | 2024:r1.3 | 2024:r1.3.1

1 vendor · 1 product

References

2 links