#VU109884 Improper Certificate Validation in cURL - CVE-2025-4947
Published: May 28, 2025
Vulnerability identifier: #VU109884
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-4947
CWE-ID: CWE-295
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
cURL
cURL
Software vendor:
curl.haxx.se
curl.haxx.se
Description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to missing certificate validation for QUIC connections when connecting to a host specified as an IP address in the URL. A remote attacker can perform Man-in-the-middle (MitM) attack.
Note, successful exploitation of the vulnerability requires wolfSSL to be used as the TLS backend for QUIC to trigger.
Remediation
Install updates from vendor's website.