CVE-2026-20231

CRITICAL9.9Published on August 19, 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload 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-2026-20231 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) CWE-74.

CVSS score9.9 / 10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness type (CWE)CWE-74

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