Is CVE-2026-76459 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-76459?

CVE-2026-76459 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-76459

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76459 are related to out-of-bounds write issues that are grouped under the Common Weakness Enumeration (CWE) CWE-787.