CVE-2026-76490

High8.6 Published on Oct 21, 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.   The vulnerabilities tracked by CVE-2026-76490 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.

CVSS score8.6 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness type (CWE)CWE-787

Vulnerabilities

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This product uses the NVD API but is not endorsed or certified by the NVD.

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Cisco fixes 34 flaws, including critical Expressway remote code execution