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Critical 9.3Published Sep 7, 2026
CVE-2026-16876An authentication bypass vulnerability exists in the WebGUI of Series UNIVERGE IX-R/IX-V.
Updated under an hour ago ()
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It affects NEC Corporation UNIVERGE IX-R/IX-V. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- NEC
- NVD analysis
- Deferred
- Record last updated
- Sep 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
NEC Corporation UNIVERGE IX-R/IX-V nec:univerge_ix_r_ix_v (from the name) | All versions from Ver1.1 through Ver1.3, All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23 | CNA record |
References
- https://jpn.nec.com/security-info/secinfo/nv26-005_en.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.