VDB-344573 · CVE-2025-15323 · TAN-2025-031

Tanium Appliance prior 1.8.3.0199/1.8.4.0205/1.8.5.0236 certificate validation

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.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Tanium Appliance. It has been classified as critical. This impacts an unknown function. The manipulation leads to certificate validation. This vulnerability is listed as CVE-2025-15323. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Tanium Appliance. It has been rated as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE is:

Tanium addressed an improper certificate validation vulnerability in Tanium Appliance.

The advisory is shared at security.tanium.com. The identification of this vulnerability is CVE-2025-15323 since 12/30/2025. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 1.8.3.0199, 1.8.4.0205 or 1.8.5.0236 eliminates this vulnerability.

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Productinfo

Vendor

Tanium

Name

Appliance

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (Tanium): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Appliance 1.8.3.0199/1.8.4.0205/1.8.5.0236

Timelineinfo

12/30/2025 CVE reserved
02/05/2026 +37 days Advisory disclosed
02/05/2026 +0 days VulDB entry created
02/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: TAN-2025-031
Status: Confirmed

CVE: CVE-2025-15323 (🔒)
GCVE (CVE): GCVE-0-2025-15323
GCVE (VulDB): GCVE-100-344573

Entryinfo

Created: 02/05/2026 20:17
Changes: 02/05/2026 20:17 (63)
Complete: 🔍
Cache ID: 216::103