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CVE-2026-76409

Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Limitation of a Pathname

Published: Sep 16, 2026Updated: Sep 18, 2026 Sources: CVE List NVDCWE-22
8.8HIGH
NVD MITRE
EPSS Score
0.5%
Top 58.4%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
No Fix Available
Self-Check
Not available

Description

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-2026-76409 are related to improper limitation of a pathname issues that are grouped under the Common Weakness Enumeration (CWE) CWE-22.

In plain language

AI Act now

Businesses running Cisco Nexus Dashboard should treat this as urgent because public attack code is available and no fix information has been published.

Executive summary

CVE-2026-76409 is a CVSS 8.8 improper pathname limitation (CWE-22) issue in Cisco Nexus Dashboard that may enable a low-privileged network attacker to compromise confidentiality, integrity, and availability.

If affected, business impact
Dashboard takeoverConfiguration data exposureNetwork operations disruptionService availability loss

What to do now

  1. Check whether your organization runs Cisco Nexus Dashboard and identify its installed version.
  2. Ask Cisco or your support partner whether your installed version is affected by CVE-2026-76409; no fixed version has been published in the available findings.
  3. Until Cisco provides guidance, restrict dashboard access to trusted administrators and remove unnecessary accounts.
  4. Review dashboard and administrator-account activity for unexpected file-access, configuration, or availability changes.
May need vendor / contractor work

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-22

Affected Products

Cisco
commercial·USaka cisco systems, cisco systems inc.
Cisco Nexus Dashboard
Networking Infrastructure

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Is your org exposed to CVE-2026-76409?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1-psFvnrg
sec.cloudapps.cisco.com
News mentions
1

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