9.3

CVE-2026-16876: nec corporation univerge ix-r/ix-v

Deferred
Published 07-09-2026Last modified 08-09-2026

Vulnerability summary

CVE-2026-16876 is a critical (CVSS 9.3) vulnerability in nec corporation univerge ix-r/ix-v. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 07-09-2026
    PublishedVulnerability first disclosed.
  2. 08-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.33% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nec corporation1 product
  • univerge ix-r/ix-vAll versions from Ver1.1 through Ver1.3, All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23

1 vendor · 1 product

References

1 links