CVE-2026-122120

Critical CVSS 9

Published 2026-11-04 · last changed 2026-11-04

The fix

We hold no Microsoft remediation data for CVE-2026-122120, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

In Yealink Plug-in Softwares before 2.35.219.0, there is an unauthorized file write vulnerability under specific scenarios, which may be exploited by attackers to achieve remote code execution.

Sources

NVD record for CVE-2026-122120

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