Is CVE-2018-18249 actively exploited?

No active exploitation of CVE-2018-18249 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-18249 be exploited remotely?

Yes. CVE-2018-18249 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-18249?

CVE-2018-18249 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2018-18249

CRITICAL

CVE-2018-18249

CWE-94Published: December 17, 2018· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Icinga Web 2 before 2.6.2 allows injection of PHP ini-file directives via vectors involving environment variables as the channel to send information to the attacker, such as a name=${PATH}_${APACHE_RUN_DIR}_${APACHE_RUN_USER} parameter to /icingaweb2/navigation/add or /icingaweb2/dashboard/new-dashlet.

NVD Source

Technical Analysis

CVE-2018-18249 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.