CVE Tools
Sign in

CVE-2026-23570

Log timestamp tampering vulnerability in Content Distribution Service

Published: Jan 29, 2026Updated: Feb 11, 2026 Sources: CVE List NVD BDUCWE-20
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.7%
Top 51.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20

Affected Products

DEXTeamViewer
On-premDesktop App
Communications / messaging-chat
1E ClientTeamViewer GmbH
SaaS
Security Products / secure-gateway-vpn
digital employee experienceteamviewer
On-premWeb App
Communications / messaging-chat
teamviewercommercialDECommunicationsaka teamviewer gmbh
teamviewer gmbhcommercialDESecurity Products

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/
teamviewer.com

Timeline

Published
Jan 29, 2026
Last Updated
Feb 11, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-23570 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows