Splunk Enterprise up to 9.2.9/9.3.7/9.4.5/10.0.1 on Windows Installation Directory permission assignment

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Splunk Enterprise up to 9.2.9/9.3.7/9.4.5/10.0.1 on Windows. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Installation Directory Handler. This manipulation causes permission assignment. This vulnerability appears as CVE-2025-20386. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Splunk Enterprise up to 9.2.9/9.3.7/9.4.5/10.0.1 on Windows. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Installation Directory Handler. The manipulation with an unknown input leads to a permission assignment vulnerability. The CWE definition for the vulnerability is CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In Splunk Enterprise for Windows versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, a new installation of or an upgrade to an affected version can result in incorrect permissions assignment in the Splunk Enterprise for Windows Installation directory. This lets non-administrator users on the machine access the directory and all its contents.

The advisory is shared at advisory.splunk.com. This vulnerability is known as CVE-2025-20386 since 10/10/2024. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 277109 (Splunk Enterprise 9.2.0 < 9.2.10, 9.3.0 < 9.3.8, 9.4.0 < 9.4.6, 10.0 < 10.0.2 (SVD-2025-1205)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.2.10, 9.3.8, 9.4.6 or 10.0.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (277109) and EUVD (EUVD-2025-201003). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 8.0
CNA Vector (cisco): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission assignment
CWE: CWE-732 / CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 277109
Nessus Name: Splunk Enterprise 9.2.0 < 9.2.10, 9.3.0 < 9.3.8, 9.4.0 < 9.4.6, 10.0 < 10.0.2 (SVD-2025-1205)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise 9.2.10/9.3.8/9.4.6/10.0.2

Timelineinfo

10/10/2024 CVE reserved
12/03/2025 +419 days Advisory disclosed
12/03/2025 +0 days VulDB entry created
12/06/2025 +2 days VulDB entry last update

Sourcesinfo

Advisory: SVD-2025-1205
Status: Confirmed

CVE: CVE-2025-20386 (🔒)
GCVE (CVE): GCVE-0-2025-20386
GCVE (VulDB): GCVE-100-334213
EUVD: 🔒

Entryinfo

Created: 12/03/2025 23:42
Updated: 12/06/2025 00:05
Changes: 12/03/2025 23:42 (66), 12/04/2025 05:32 (2), 12/04/2025 08:51 (1), 12/06/2025 00:05 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!