High severity · published Oct 29, 2026
CVE-2026-33924
Authenticated RCE in update functionality in Guardian/CMC before 26.4.0
New
7.2
CVSS
–
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
CMC · Nozomi Networks
before 26.4.0 · source: vendor
GU
Guardian · Nozomi Networks
before 26.4.0 · source: vendor
Affected product
CM
CMC
Nozomi Networks
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