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CRITICAL severity

CVE-2018-21025 — centreon

CRITICAL

CVE-2018-21025 is a critical-severity (CVSS 9.8) Improper Privilege Management vulnerability in centreon/centreon. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Centreon Privilege Escalation

Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
1 known
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs87th percentile — riskier than 87% of all scored CVEsHighest risk
0.00%1.21%2.41%3.62%0.2%2.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘centreon/centreon

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

In Centreon VM through 19.04.3, centreon-backup.pl allows attackers to become root via a crafted script, due to incorrect rights of sourced configuration files.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistcentreon/centreonall versionsNo fix

Affected Products

1 product · 1 configurations
Application
centreon vmcentreon
≤ 19.04.3
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

In Centreon VM through 19.04.3, centreon-backup.pl allows attackers to b…

github.comNVDOct 2019

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for centreon/centreon, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of centreon/centreon for CVE-2018-21025. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.

Frequently Asked Questions

In Centreon VM through 19.04.3, centreon-backup.pl allows attackers to become root via a crafted script, due to incorrect rights of sourced configuration files.
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CVE-2018-21025: centreon: Centreon Privilege Escalation