What’s Vulnerable › Vulnerabilities
CVE-2026-23570: Log timestamp tampering vulnerability in Content Distribution Service
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-01-29 · updated 2026-06-17
- Weakness: CWE-20
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.
Affected products
- TeamViewer Digital Employee Experience: before 26.1 — fixed in 26.1
How to fix
Upgrade to a fixed version: TeamViewer Digital Employee Experience 26.1. Check the vendor advisory for mitigations.
References
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