CVE-2026-76471 Cisco NX-OS - Command Injection

Cisco NX-OS Software contains a command injection vulnerability in the NX-API due to insufficient input validation, letting unauthenticated remote attackers execute arbitrary code with root privileges or cause denial of service, exploit requires sending crafted HTTP requests.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.52% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
7 October 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to the latest Cisco NX-OS Software version that addresses this vulnerability.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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