NN-2026:13-01
Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0
Last update: 2026-07-07
| Advisory ID | NN-2026:13-01 |
|---|---|
| Topic | Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0 |
| CWE Impact | CWE-266: Incorrect Privilege Assignment |
| Issue date | 2026-07-07 |
| Affects | Guardian, CMC < v26.2.0 |
| CVE Name(s) | CVE-2026-33390 |
| CVSS Details | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| CVSS Score | 7.2 (CVSS v4.0) 8.1 (CVSS v3.1) |
| CVE Risk Level | High (CVSS v4.0) High (CVSS v3.1) |
| Risk Level for Nozomi customers | High |
Summary
An Incorrect Privilege Assignment vulnerability was discovered in the synchronization functionality due to Arc sensors receiving CLI permissions.
Impact
An authenticated user with limited privileges can push administrative CLI commands through the sync, altering the device configuration, and/or affecting its availability.
Affected Products
Guardian, CMC < v26.2.0
Workarounds and Mitigations
Review all enabled sensors and disallow or delete untrusted ones.
Solutions
Upgrade to v26.2.0 or later.
Modification History
2026-07-07: Initial revision
Related Links
Acknowledgements
We thank the following parties for their efforts:
- Andrea Palanca of Nozomi Networks Product Security team for finding this issue during an internal investigation
Contact
Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com.More contact details on the PSIRT page.