CVE-2026-16876: Nec Corporation Univerge Ix-R/ix-V

Critical severity, CVSS 9.3. EPSS: 0.3% chance of exploitation in the next 30 days.

An authentication bypass vulnerability exists in the WebGUI of Series UNIVERGE IX-R/IX-V. A user could bypass authentication and execute arbitrary CLI commands by tampering with WebGUI messages and sending them to the device via internet.

Affected products

• Nec Corporation Univerge Ix-R/ix-V

Published 2026-09-07. Last modified 2026-09-09.