CVE-2026-33390 Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0
Authenticated users with limited privileges can escalate to administrative CLI access via Arc sensor synchronization, allowing device configuration changes.
- 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-2026-33390?
CVE-2026-33390 is a high-severity vulnerability in Nozomi Networks CMC, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An Incorrect Privilege Assignment vulnerability was discovered in the synchronization functionality due to Arc sensors receiving CLI permissions. An authenticated user with limited privileges can push administrative CLI commands through the sync, altering the device configuration, and/or affecting its availability.
Weakness: CWE-266
Which versions are affected by CVE-2026-33390?
It affects 2 products.
Products include Nozominetworks Cmc, Nozominetworks Guardian.
How do I fix CVE-2026-33390?
No fix has been published for CVE-2026-33390 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33390 being exploited?
There is no known exploitation of CVE-2026-33390 in the wild and no public exploit code.
Other vulnerabilities in Nozomi Networks CMC
- CVE-2023-29245 SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0
- CVE-2026-31984 DoS through oversized audit log entries in Guardian/CMC before 26.2.0
- CVE-2023-2567 Authenticated SQL Injection on Query functionality in Guardian/CMC before 22.6.3 and 23.1.0
- CVE-2023-22378 Authenticated Blind SQL Injection on sorting in Guardian/CMC before 22.6.2
- CVE-2023-23574 Authenticated Blind SQL Injection on alerts count in Guardian/CMC before 22.6.2
Sources
Also known as GHSA-w68v-42v6-6q7h.