CVE-2026-20220 Cisco Crosswork Network Controller Remote Code Execution Vulnerability
Authenticated attackers with template write permissions can execute arbitrary commands via crafted requests in the web management interface.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20220?
CVE-2026-20220 is a medium-severity command injection vulnerability in Cisco Crosswork Network Change Automation, published on 17 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-74
Which versions are affected by CVE-2026-20220?
It affects 1 product.
Products include Cisco Crosswork Network Controller.
How do I fix CVE-2026-20220?
No fix has been published for CVE-2026-20220 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-20220 being exploited?
There is no known exploitation of CVE-2026-20220 in the wild and no public exploit code.
Other vulnerabilities in Cisco Crosswork Network Change Automation
Sources
Also known as GHSA-x9r3-4p88-q7rc.