CVE-2025-4947

MEDIUM

curl 8.8.0-8.13.0 - Improper Certificate Validation for QUIC Connections via IP Address URL

Title source: llm
STIX 2.1

Description

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.

References (4)

Core 4
Core References
Exploit, Issue Tracking, Patch
https://hackerone.com/reports/3150884
Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/05/28/4

Scores

CVSS v3 6.5
EPSS 0.0024
EPSS Percentile 14.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (1)
haxx/curl 8.8.0 - 8.14.0
Published May 28, 2025
Tracked Since Feb 18, 2026