CVE-2026-76453: Improper Neutralization in Cisco Cisco NX-OS Software

Cisco NX-OS Software contains vulnerabilities related to improper neutralization (CWE-707) as identified in CVE-2026-76453. These issues were discovered internally by Cisco's engineering team during a comprehensive security review. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high severity with network attack vector, low attack complexity, low privileges required, no user interaction, and impacts to confidentiality, integrity, and availability. Cisco released a software hardening update addressing these issues, but explicit patch or affected version details are not provided in the input data.

The vulnerability allows an attacker with low privileges to remotely exploit the flaw without user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability of the affected system. This could result in unauthorized data access, modification, or denial of service on Cisco NX-OS devices.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Cisco has released a software hardening update addressing multiple vulnerabilities including CVE-2026-76453. Users should monitor Cisco's official advisories for specific patch availability and apply updates promptly once confirmed.