NECCVE-2026-16876
NEC UNIVERGE IX-R/IX-V: authentication bypass
Critical9.3CVE-2026-16876 · Published Sep 7, 2026 · updated Sep 9, 2026
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| UNIVERGE IX-R/IX-V Product | <= All versions from Ver1.1 through Ver1.3, All versions from V | No fix yet |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-306