CVE-2026-20357: Cisco Crosswork Planning

Critical severity, CVSS 10.0. EPSS: 0.6% chance of exploitation in the next 30 days.

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-2026-20357 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.

Affected products

• Cisco Cisco Crosswork Planning: version 7.0.2 only; version 7.1.0 only; version 7.0.0 only; version 7.0.4 only; version 7.0.1 only; version 7.0.3 only; …

Published 2026-08-19. Last modified 2026-08-21.