CVE-2026-20326CWE-306

CVE-2026-20326

Critical · published September 17, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
31.6
In the wild
Unconfirmed
What it is

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Nexus Dashboard engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-20326 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00387 · 31.6th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-09-17T00:17Z
References (1)
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1-psFvnrg · [email protected]
EPSS history
Timeline
  • 18 SEP 03:58Z
    EPSS moved — → 0%
    epss
  • 16 SEP 20:02Z
    Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Missing Authentication for Critical Function
    cvelistv5