Vulnerability · Published Jan 29, 2026 · Assigned by TV
CVE-2026-23569Out-of-bounds read vulnerability in Content Distribution Service
Medium 6.5
In plain English
A medium-severity out-of-bounds read in DEX from TeamViewer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows a remote attacker to leak stack memory and cause a denial of service via a crafted request. The leaked stack memory could be used to bypass ASLR remotely and facilitate exploitation of other vulnerabilities on the affected system.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TeamViewer | DEX | 0 – before 26.1 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H