Missing authentication in NEC Corporation UNIVERGE IX-R/IX-V
Priority MEDIUM 49CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0058 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 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 | — | No fix listed | CNA |
- UNIVERGE IX-R/IX-V VendorNEC Corporation Affected All versions from Ver1.1 through Ver1.3, All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16876
- 2026-10-03 Alias added: GHSA-8rh4-5q7c-x6qf
References
More NEC Corporation vulnerabilities
- TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
- TI-2020-13174 XML external entity injection in NEC Corporation ExpressCluster CVSS 3.1HIGH 7.5
- TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0
- TI-2018-08402 NEC Univerge Sv9100 WebPro 6.00.00 devices have Predictable Session IDs that result in… CVSS 3.1CRITICAL 9.8
- TI-2018-08403 NEC Univerge Sv9100 WebPro 6.00.00 devices have Cleartext Password Storage in the Web UI. CVSS 3.1CRITICAL 9.8
- TI-1999-00205 rpc.ypupdated (NIS) allows remote users to execute arbitrary commands. CVSS 2.0HIGH 10.0
Sources
- CVE-2026-16876 · CVE Program
- CVE-2026-16876 · NVD
- FIRST EPSS
- GHSA-8rh4-5q7c-x6qf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences