CVE-2026-20357criticalCWE-306

CVE-2026-20357: critical vulnerability in Cisco Crosswork Planning

Cisco Crosswork Security Hardening Release: August 2026

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28Vexday Risk Score

No sign of exploitation. It has an official Brazilian government alert.

ssvc Trackcvss 10epss 0.6%
Official alert in Brazil

Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.

Source: CTIR Gov (GSI) and CISC Gov.br, under the CC BY-ND 3.0 license.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
Cisco · Cisco Crosswork Planning
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In the same product, most dangerous first.

CVE-2026-20030CRITICALCisco Crosswork Security Hardening Release: August 2026EPSS 0.6%CVE-2026-20358CRITICALCisco Crosswork Security Hardening Release: August 2026EPSS 0.5%CVE-2026-20359CRITICALCisco Crosswork Security Hardening Release: August 2026EPSS 0.4%