CVE-2026-20357
Received Received - Intake

Missing Authentication in Cisco Crosswork

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: Cisco Systems, Inc.

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

CVSS Scores

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-20357
EUVD
EUVD-2026-62565

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
cisco crosswork *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

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Executive Summary

CVE-2026-20357 is a vulnerability in Cisco Crosswork where missing authentication for critical functions allows unauthorized access. It is classified under CWE-306, indicating a lack of proper authentication mechanisms for sensitive operations.

Impact Analysis

This vulnerability could allow attackers to perform unauthorized actions with high privileges. Since the CVSS score is 10.0, it poses a critical risk, potentially leading to complete system compromise, data breaches, or service disruption.

Compliance Impact

Missing authentication for critical functions may violate compliance requirements for data protection and access control. GDPR and HIPAA mandate strict authentication and authorization controls, so this vulnerability could lead to non-compliance and associated penalties.

Mitigation Strategies

Apply the software hardening release provided by Cisco Crosswork to address missing authentication issues. Ensure critical functions are properly secured with authentication mechanisms.

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