Improper certificate validation in Icinga - CVE-2025-48057
Published: May 27, 2025
Vulnerability identifier: #VU109861
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:H/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-48057
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Icinga
Affected software:
Icinga
Icinga
Detailed vulnerability description
The vulnerability allows a remote attacker to impersonate trusted nodes.
The vulnerability exists due to an error within the VerifyCertificate() function that can be tricked into issuing a valid certificate. A remote attacker can send a specially crafted certificate request and request renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes.
How to mitigate CVE-2025-48057
Install updates from vendor's website.