CVE-2026-33924: Authenticated RCE in update functionality in Guardian/CMC before 26.4.0
Two OS command injection vulnerabilities were discovered in the update installation functionality due to insufficient validation of the update bundle contents. An attacker with administrative privileges can remotely supply a crafted update bundle that, when installed, causes arbitrary commands to be executed with root privileges, allowing the attacker to read or modify sensitive data, change the appliance configuration, or shut down the appliance.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 26.4.0
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker needs administrative privileges on a Guardian/CMC appliance and network access sufficient to remotely supply and install a crafted update bundle.
What level of access does successful exploitation provide?
The crafted bundle can cause arbitrary commands to run with root privileges. This can enable reading or modifying sensitive data, changing appliance configuration, or shutting down the appliance.
Which versions are affected?
Guardian/CMC versions before 26.4.0 are affected.