VDB-328714 · CVE-2025-6026 · GCVE-0-2025-6026

Lenovo Universal Device Client 23.10 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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Lenovo Universal Device Client. Affected by this issue is some unknown functionality. Executing a manipulation can lead to certificate validation. The identification of this vulnerability is CVE-2025-6026. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Lenovo Universal Device Client. It has been declared as problematic. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect integrity. CVE summarizes:

An improper certificate validation vulnerability was reported in the Lenovo Universal Device Client (UDC) that could allow a user capable of intercepting network traffic to obtain encrypted application metadata, including device information, geolocation, and telemetry data.

The weakness was shared with Visma. The advisory is available at support.lenovo.com. This vulnerability was named CVE-2025-6026 since 06/12/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 25.7.0.21 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Lenovo

Name

Universal Device Client

Version

23.10

License

commercial

Website

Vendor: https://www.lenovo.com/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.4
VulDB Meta Temp Score: 3.4

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

CNA Base Score: 3.1
CNA Vector (lenovo): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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: Universal Device Client 25.7.0.21

Timelineinfo

06/12/2025 CVE reserved
10/15/2025 +125 days Advisory disclosed
10/15/2025 +0 days VulDB entry created
10/15/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Organization: Visma
Status: Confirmed

CVE: CVE-2025-6026 (🔒)
GCVE (CVE): GCVE-0-2025-6026
GCVE (VulDB): GCVE-100-328714

Entryinfo

Created: 10/15/2025 19:33
Changes: 10/15/2025 19:33 (76)
Complete: 🔍
Cache ID: 216::103