Unrated severityNVD Advisory· Published Jan 29, 2026· Updated Jan 29, 2026
Integer underflow in Content Distribution Service UDP handler
CVE-2026-23567
Description
An integer underflow in the UDP command handler of the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to trigger a heap-based buffer overflow and cause a denial-of-service (service crash) via specially crafted UDP packets.
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Affected products
2- Range: <26.1
- TeamViewer/DEXv5Range: 0
Patches
Vulnerability mechanics
References
1News mentions
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