CVE-2026-23570 — MEDIUM (6.5)

Q: How severe is CVE-2026-23570?

CVE-2026-23570 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-23570?

Check the references section above for vendor advisories and patch information. Affected products include: Teamviewer Digital Employee Experience, Microsoft Windows.

Vulnerability 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 Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Teamviewer	Digital Employee Experience	< 26.1
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-20

References

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

FAQ

What is CVE-2026-23570?

CVE-2026-23570 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 netwo...

How severe is CVE-2026-23570?

CVE-2026-23570 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-23570?

Check the references section above for vendor advisories and patch information. Affected products include: Teamviewer Digital Employee Experience, Microsoft Windows.