4.4

CVE-2025-61909: icinga Execution with Unnecessary Privileges

CVSS: 4.4v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-61909DEBIAN-CVE-2025-61909
Published 16-10-2025Last modified 16-10-2025
Open JSON

Vulnerability summary

CVE-2025-61909 is a medium (CVSS 4.4) Execution with Unnecessary Privileges vulnerability in icinga. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.3% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2025:15644-1

Timeline

  1. 16-10-2025
    PublishedVulnerability first disclosed.
  2. 16-10-2025
    Last modifiedVulnerability information updated.

Description

Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.22%

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

Icinga2 products
  • icinga≥ 2.10.0, < 2.13.13 | ≥ 2.14.0, < 2.14.7 | 2.15.0
  • icinga2≥ 2.10.0, < 2.13.13 | ≥ 2.14.0, < 2.14.7 | ≥ 2.15.0, < 2.15.1
Debian1 product
  • icinga2All versions (No fix recorded) | < 2.14.6-1+deb13u1 | < 2.15.1-1
Ubuntu1 product
  • icinga2All versions (No fix recorded)

3 vendors · 4 products

References

8 links