CVE-2026-23567CWE-122

Integer underflow in Content Distribution Service UDP handler

Medium · published January 29, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
26.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00344 · 26.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-01-29T08:47Z
EPSS history
Timeline
  • 29 JAN 08:47Z
    Integer underflow in Content Distribution Service UDP handler
    cvelistv5