CVE-2026-16876
Quick assessment
Affected
NEC Corporation UNIVERGE IX-R/IX-V
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Series UNIVERGE IX-R/IX-V 的 WebGUI 存在一个身份验证绕过漏洞。攻击者可通过篡改 WebGUI 消息并经由互联网发送至设备，从而绕过身份验证并执行任意 CLI 命令。
Possible ATT&CK Techniques 3 AI
T1078 · Valid Accounts T1133 · External Remote Services T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-16876
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NEC Corporation | UNIVERGE IX-R/IX-V | All versions from Ver1.1 through Ver1.3, All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23 | - |
|
II. Public POCs for CVE-2026-16876
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-16876 (1)
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V. Comments for CVE-2026-16876
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