RCE in Cat03 Lilac-Reloaded

CVE-2023-53948

Lilac-Reloaded for Nagios 2.0.8 contains a remote code execution vulnerability in the autodiscovery feature that allows attackers to inject arbitrary commands. Attackers can exploit the lack of input filtering in the nmap_binary parameter to execute a reverse shell by sending a crafted POST request to the autodiscovery endpoint.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-53948?
CVE-2023-53948 is a critical-severity vulnerability in Cat03 Lilac-Reloaded, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-12-19.
How severe is CVE-2023-53948?
Critical severity. CVSS v3 base score is 9.8 out of 10.