Is CVE-2026-33390 actively exploited?

No active exploitation of CVE-2026-33390 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33390 be exploited remotely?

Yes. CVE-2026-33390 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33390?

CVE-2026-33390 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-33390

CWE-266Published: July 9, 2026· Updated: Jul 9, 2026

8.1

CVSS v3.1

EPSS:0.21%probability of exploitation in 30 daysPercentile:11.2th

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.

NVD Source

Technical Analysis

CVE-2026-33390 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.