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Advisory severityCritical10.0Cisco Exploited

Critical [CVE-2026-20030 +3] Cisco Crosswork Security Hardening Release: August 2026

This critical-severity Cisco advisory covers CVE-2026-20030 and CVE-2026-20357 and 2 more CVEs affecting Crosswork Planning.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 4 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

cisco-sa-hardening-crosswork-UzDTU9Vh Source published Source updated

VulniPulse record published Record updated

CVE-2026-20030CVE-2026-20357CVE-2026-20358CVE-2026-20359
Affected products & platforms
CiscoUnclassified
Open source advisory

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Summary

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.

These vulnerabilities were found during internal testing and are not known to be actively exploited.

To assist customers in patching and to streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures Identifier (CVE ID) to each CWE grouping.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

Affected product named by the advisory: Crosswork Planning.

Affected versions
  • Scope: These vulnerabilities affect the following Cisco Crosswork platforms, regardless of device configuration:
  • Release Crosswork Data Gateway (first fixed: 7.2.1 and earlier)
  • Release 7.2.1-SP (first fixed: Crosswork Network Controller)
  • Release 7.2.1 and earlier (first fixed: 7.2.1-SP)
  • Release Crosswork Planning (first fixed: 7.2.1 and earlier)
  • Release 7.2.1-SP (first fixed: Crosswork Workflow Manager)
  • Release 2.1.1 and earlier (first fixed: 2.1.1-SP)

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Fixed versions
  • 7.2.1 and earlier
  • Crosswork Network Controller
  • 7.2.1-SP
  • Crosswork Workflow Manager
  • 2.1.1-SP

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
  • Release Crosswork Data Gateway: upgrade to 7.2.1 and earlier.
  • Release 7.2.1-SP: upgrade to Crosswork Network Controller.
  • Release 7.2.1 and earlier: upgrade to 7.2.1-SP.
  • Release Crosswork Planning: upgrade to 7.2.1 and earlier.
  • Release 7.2.1-SP: upgrade to Crosswork Workflow Manager.
  • Release 2.1.1 and earlier: upgrade to 2.1.1-SP.
Workaround status
  • There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

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