Cisco Crosswork Network Controller and Cisco Network Services Orchestrator Advisory
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 Cisco Product Security Incident Response Team (PSIRT). Upon further analysis, the Cisco PSIRT has reclassified this issue as a customer-configurable, resource management issue rather than a security vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nso-dos-7Egqyc Security Impact Rating: Informational CVE: CVE-2026-20188
CSIRTS triage
- What
- A denial of service condition has been reclassified as a resource management issue.
- Who is affected
- Users of Cisco Crosswork Network Controller and NSO.
- Urgency
- Urgency is informational as it is not classified as a security vulnerability.
- Action
- No specific action is required.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Crosswork Network Controller and Network Services Orchestrator
Get an email when a new Crosswork Network Controller and Network Services Orchestrator advisory drops — max one per day, one-click unsubscribe.
Details
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-201880.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-20188 | coverage & exploitation status | NVD · CVE.org |
More from Cisco Security Advisories
- criticalCisco Crosswork Security Hardening Release: August 20262026-08-21
- criticalCisco Advance Notification for Publication of August 19, 2026, Security Advisories2026-08-19
- mediumCisco Packaged Contact Center Enterprise and Cisco Unified Contact Center Enterprise Server-Side Request Forge…2026-08-19
- highCisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability2026-08-19
- criticalCisco Secure Workload Software Security Hardening Release: August 20262026-08-19