TI-2025-28565 Aliases CVE-2025-44016 GHSA-xqm7-qxfg-5xwm

File Hash Validation Bypass in NomadBranch.exe

MEDIUM 46CWE-20Published 2025-12-11 · Updated 2025-12-11

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00301 22nd percentileScored 2026-11-07

Fix Fixed DEX (TeamViewer): 25.11.0.29

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
TeamViewer	DEX	before 25.11.0.29; up to 25.9.0.46; up to 25.5.0.53; up to 24.5.0.69	25.11.0.29	Patch available	CNA

DEX VendorTeamViewer Affected before 25.11.0.29; up to 25.9.0.46; up to 25.5.0.53; up to 24.5.0.69 Fixed in 25.11.0.29 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:teamviewer:digital_employee_experience::::::::	before 25.11	Vulnerable	TeamViewer
cpe:2.3:o:microsoft:windows:-:::::::*	not specified by NVD	Running on	Microsoft

cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:* Versions before 25.11 Vulnerable ·TeamViewer
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

Fix · CNA DEX (TeamViewer) Fixed in 25.11.0.29

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-12-11
TeamViewer DEX 25.11.0.29
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-11638 Denial-of-Service Vulnerability in NomadBranch.exePriority LOW 34
- TI-2025-29018 Unauthenticated Transmission of Data in NomadBranch.exePriority LOW 28
Show all 3 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-44016
2026-10-03 Alias added: GHSA-xqm7-qxfg-5xwm

References

Advisory 1

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/

TI-2025-40180 Command Injection in 1E-Explorer-TachyonCore-FindFileBySizeAndHash Instruction CVSS 3.1HIGH 7.2
TI-2025-40179 Command Injection in 1E-Nomad-GetCmContentLocations Instruction CVSS 3.1HIGH 7.2
TI-2025-40178 Command Injection in 1E-Explorer-TachyonCore-CheckSimpleIoC Instruction CVSS 3.1HIGH 7.2
TI-2025-40177 Command Injection in 1E-Explorer-TachyonCore-DevicesListeningOnAPort Instruction CVSS 3.1HIGH 7.2
TI-2026-18989 Out-of-bounds read vulnerability in Content Distribution Service CVSS 3.1HIGH 8.1
TI-2025-40184 Command Injection in 1E-ConfigMgrConsoleExtensions Instructions CVSS 3.1HIGH 7.2

See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences