CVE-2026-20358
Received Received - Intake

External Control of File System 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-2026-20358 are related to external control of the file system issues that are grouped Common Weakness Enumeration (CWE) CWE-73.

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-2026-20358
EUVD
EUVD-2026-62566

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-73 The product allows user input to control or influence paths or file names that are used in filesystem operations.

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Executive Summary

This vulnerability is an external control of file system issue, classified under CWE-73. It allows unauthorized manipulation of files on the system due to insufficient input validation or improper access controls.

Impact Analysis

An attacker could exploit this to read, modify, or delete sensitive files, leading to data breaches, system instability, or unauthorized access. The high CVSS score indicates severe potential impact.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR (data protection) or HIPAA (health data security) by enabling unauthorized access or modification of sensitive data, potentially resulting in legal penalties or reputational damage.

Mitigation Strategies

Apply the software hardening release from Cisco Crosswork to address the file system control issues. Monitor Cisco's security advisories for updates and patches.

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