CVE-2026-20220CWE-74

Cisco Crosswork Network Controller Remote Code Execution Vulnerability

Medium · published June 17, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
15.9
In the wild
Unconfirmed
What it is

A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to execute arbitrary commands on an affected device.

This vulnerability is due to insufficient input validation in the configuration template engine of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system in limited areas of the file system. This vulnerability affects only areas of the operating system for which the template user has write permissions. 

To exploit this vulnerability, the attacker must have valid template user credentials with write permissions. Template users with read permissions cannot exploit this vulnerability. 

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00253 · 15.9th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2026-06-17T16:17Z
EPSS history
Timeline
  • 17 JUN 16:17Z
    Cisco Crosswork Network Controller Remote Code Execution Vulnerability
    cvelistv5