Resource exhaustion in Cisco Crosswork Network Change Automation
CVE-2026-20188
Following the initial publication of the Security Advisory about a denial of service (DoS) condition in Cisco Crosswork Network Controller and Cisco Network Services Orchestrator (NSO), additional information has been made available to the…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.000 (11.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (Unrated). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N.
Affected products
- Cisco Crosswork Network Change Automation — versions 3.0.0, 1.0.0, 2.0.2
- Cisco Network Services Orchestrator — versions 5.7, 5.7.1, 5.7.1.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20188?
- CVE-2026-20188 is a unrated-severity vulnerability in Cisco Crosswork Network Change Automation, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-05-06.
- How severe is CVE-2026-20188?
- Unrated severity. CVSS v3 base score is 7.5 out of 10.