As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive… (CVE-2026-76455)

Cisco's NX-OS engineering team conducted an internal security review that identified multiple vulnerabilities, including CVE-2026-76455, which involves improper input validation of special elements used in command issuance. This issue is categorized under CWE-20 (Improper Input Validation) and CWE-284 (Improper Access Control). The vulnerabilities have been addressed through a software hardening release, although specific affected versions and patch details are not provided in the available data.

The CVE-2026-76455 vulnerability has a CVSS 3.1 score of 9.8 (critical), indicating that it can be exploited remotely without privileges or user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability of the affected system. The improper input validation could allow attackers to execute unauthorized commands or disrupt system operations.

A software hardening release addressing these vulnerabilities has been issued by Cisco. However, no explicit patch links or affected versions are provided in the current data. Users should consult Cisco's official advisories for the latest patch information and apply updates promptly. Since this is not a cloud service, remediation depends on user-applied updates.