Detections
Analytics

Splunk Enterprise 9.1.x < 9.1.8 / 9.2.x < 9.2.5 / 9.3.x < 9.3.3 / 9.4.x < 9.4.1 Multiple Vulnerabilities (SVD-2025-0308)

high Nessus Plugin ID 310143

Synopsis

An application running on a remote web server host is affected by multiple vulnerabilities.

Description

The version of Splunk installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities:

 - A vulnerability in the kjd/idna library, specifically within the idna.encode() function, allows crafted input strings to cause quadratic complexity, leading to a denial of service condition. (CVE-2024-3651)

 - The CPython email module does not properly quote newlines for email headers when serializing an email message, allowing for header injection. (CVE-2024-6923)

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

Solution

Upgrade Splunk Enterprise to versions 9.1.8, 9.2.5, 9.3.3, 9.4.1, or higher.

See Also

https://advisory.splunk.com/advisories/SVD-2025-0308

Plugin Details

Severity: High

ID: 310143

File Name: splunk_enterprise_svd-2025-0308.nasl

Version: 1.1

Type: Combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 4/24/2026

Updated: 4/24/2026

Supported Sensors: Nessus Agent, 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-2024-3651

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:splunk:splunk

Required KB Items: installed_sw/Splunk

Patch Publication Date: 3/26/2025

Vulnerability Publication Date: 3/26/2025

Reference Information

CVE: CVE-2024-3651, CVE-2024-6923