Cisco NX-OS Software Security Hardening Release: October 2026
Cisco issued an October 2026 NX-OS hardening release for internally found flaws not known to be exploited.
Cisco published an October 2026 NX-OS security hardening release after an internal review found multiple vulnerabilities. The issues were discovered in internal testing and are not known to be actively exploited. Cisco grouped them by weakness class and assigned one CVE identifier to each class, then released software updates. The excerpt does not list the CVE identifiers.
- Flaws were found during Cisco internal testing.
- Cisco says they are not known to be actively exploited.
- Issues were grouped by CWE with one CVE per class.
- Software updates are available for NX-OS.
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures identifier (CVE ID). Cisco has released software updates that…
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