Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2025-4947

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.

Published

2025-05-28T07:15:24.780

Last Modified

2025-06-26T15:08:21.520

Status

Analyzed

Source

2499f714-1537-4658-8207-48ae4bb9eae9

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	haxx	curl	< 8.14.0	Yes

References

https://curl.se/docs/CVE-2025-4947.html Patch, Vendor Advisory (2499f714-1537-4658-8207-48ae4bb9eae9)
https://curl.se/docs/CVE-2025-4947.json Vendor Advisory (2499f714-1537-4658-8207-48ae4bb9eae9)
https://hackerone.com/reports/3150884 Exploit, Issue Tracking, Patch (2499f714-1537-4658-8207-48ae4bb9eae9)
http://www.openwall.com/lists/oss-security/2025/05/28/4 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)