Improper Neutralization Vulnerabilities in Cisco NX-OS
CVE-2026-76453

8.8HIGH

Key Information:

Vendor

Cisco
Status
Cisco Nx-os Software
Cisco Nx-os System Software In Aci Mode
Cisco Unified Computing System (managed)
Vendor
CVE Published:
7 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-76453?

Cisco NX-OS product has identified vulnerabilities resulting from improper neutralization of input, classified under CWE-707. This is part of an ongoing effort by Cisco to enhance product security and quality through a comprehensive internal security review. The software hardening release aims to address these weaknesses, ensuring better protection for users of NX-OS.

Affected Version(s)

Cisco NX-OS Software 8.2(5)

Cisco NX-OS Software 7.3(5)D1(1)

Cisco NX-OS Software 8.4(2)

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.