CVE-2025-4947

MEDIUM
2025-05-28 2499f714-1537-4658-8207-48ae4bb9eae9
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:44 vuln.today
Patch Released
Mar 28, 2026 - 18:44 nvd
Patch available
PoC Detected
Jun 26, 2025 - 15:08 vuln.today
Public exploit code
CVE Published
May 28, 2025 - 07:15 nvd
MEDIUM 6.5

Tags

Information Disclosure Curl Redhat Suse

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.

Analysis

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical Context

This vulnerability is classified under CWE-295. 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. Affected products include: Haxx Curl.

Affected Products

Haxx Curl.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

53
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +32
POC: +20

Vendor Status

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CVE-2025-4947 vulnerability details – vuln.today
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