Is CVE-2026-20358 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-20358?

CVE-2026-20358 has a CVSS v3 severity of CRITICAL (10).

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CVE-2026-20358

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork 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-2026-20358 are related to external control of the file system issues that are grouped Common Weakness Enumeration (CWE) CWE-73.