CVE-2026-33390 — HIGH (8.1)

Q: How severe is CVE-2026-33390?

CVE-2026-33390 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-33390?

Check the references section above for vendor advisories and patch information. Affected products include: Nozominetworks Cmc, Nozominetworks Guardian.

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Nozominetworks	Cmc	< 26.2.0
Nozominetworks	Guardian	< 26.2.0

Related Weaknesses (CWE)

CWE-266

References

https://security.nozominetworks.com/NN-2026:13-01MitigationVendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-827968.html

FAQ

What is CVE-2026-33390?

CVE-2026-33390 is a vulnerability with a CVSS score of 8.1 (HIGH). 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...

How severe is CVE-2026-33390?

CVE-2026-33390 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-33390?

Check the references section above for vendor advisories and patch information. Affected products include: Nozominetworks Cmc, Nozominetworks Guardian.