Detections
Analytics

Curl 8.13.0 < 8.14.1 DoS (CVE-2025-5399)

high Nessus Plugin ID 240632

Synopsis

The remote host has a program that is affected by denial of service vulnerability.

Description

The version of Curl installed on the remote host is is missing security update. It is, therefore, affected by a denial of service vulnerability.

 - Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application. (CVE-2025-5399)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade Curl to version 8.14.0 or later

See Also

https://curl.se/docs/CVE-2025-5399.html

Plugin Details

Severity: High

ID: 240632

File Name: curl_CVE-2025-5399.nasl

Version: 1.1

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 6/26/2025

Updated: 6/26/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-5399

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:haxx:curl

Required KB Items: installed_sw/Curl

Patch Publication Date: 6/4/2025

Vulnerability Publication Date: 6/4/2025

Reference Information

CVE: CVE-2025-5399

IAVA: 2025-A-0398