CVE-2026-20188

NONE

Cisco Crosswork Network Controller and Cisco Network Services Orchestrator Connection Exhaustion Denial of Service Vulnerability

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1

Scores

CVSS v3 0.0
EPSS 0.0004
EPSS Percentile 11.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (50)
Cisco/Cisco Crosswork Network Change Automation
Cisco/Cisco Crosswork Network Change Automation 1.0.0
Cisco/Cisco Crosswork Network Change Automation 2.0.2
Cisco/Cisco Crosswork Network Change Automation 3.0.0
Cisco/Cisco Crosswork Network Change Automation 4.0.0
Cisco/Cisco Crosswork Network Change Automation 4.1.0
Cisco/Cisco Crosswork Network Change Automation 4.1.3
Cisco/Cisco Crosswork Network Change Automation 4.1.4
Cisco/Cisco Crosswork Network Change Automation 4.5.0
Cisco/Cisco Crosswork Network Change Automation 4.5.1
... and 40 more
Published May 06, 2026
Tracked Since May 06, 2026