TeamViewer DEX Client up to 24.5.0.69/25.5.053/25.9.0.46 on Windows Content Distribution Service NomadBranch.exe denial of service

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.
5.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in TeamViewer DEX Client up to 24.5.0.69/25.5.053/25.9.0.46 on Windows. This issue affects some unknown processing of the file NomadBranch.exe of the component Content Distribution Service. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2025-12687. The attack must originate from the local network. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in TeamViewer DEX Client up to 24.5.0.69/25.5.053/25.9.0.46 on Windows. This affects an unknown functionality of the file NomadBranch.exe of the component Content Distribution Service. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to cause a denial of service (application crash) via a crafted command, resulting in service termination.

The weakness was shared with Bank of America. The advisory is shared at teamviewer.com. This vulnerability is uniquely identified as CVE-2025-12687 since 11/04/2025. The exploitability is told to be easy. The attack can only be done within the local network. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

Upgrading to version 25.11.0.29 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 6.5
CNA Vector: 🔒

CVSSv2info

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

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: DEX Client 25.11.0.29

Timelineinfo

11/04/2025 CVE reserved
12/11/2025 +37 days Advisory disclosed
12/11/2025 +0 days VulDB entry created
01/15/2026 +35 days VulDB entry last update

Sourcesinfo

Advisory: teamviewer.com
Organization: Bank of America
Status: Confirmed

CVE: CVE-2025-12687 (🔒)
GCVE (CVE): GCVE-0-2025-12687
GCVE (VulDB): GCVE-100-335889

Entryinfo

Created: 12/11/2025 15:17
Updated: 01/15/2026 05:47
Changes: 12/11/2025 15:17 (66), 01/15/2026 05:47 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Interested in the pricing of exploits?

See the underground prices here!