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CVE-2026-33390

Last refreshed2026-10-07

Status: UPDATED  |  Advisory ID: CVE-2026-33390

Key Details

CVECVE-2026-33390
CVSS Score / Version8.1 (High) / CVSS v3.1
Updated2026-08-11
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is high; availability impact is high.
Affected productsNozomi Networks Guardian, Nozomi Networks CMC, and Siemens RUGGEDCOM APE1808
Classified asCWE-266 (Incorrect Privilege Assignment)
Exploitation prediction (EPSS)0.40% probability of exploitation in the next 30 days (32% percentile) -- FIRST.org's EPSS model.

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Nozomi NetworksGuardian
Nozomi NetworksCMC
SiemensRUGGEDCOM APE1808
SubsystemsGeneral OT
SectorsMultiple

What to Know

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)

What to Do

Monitor Nozomi Networks's and Siemens's web pages for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-33390
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-33390
Vendor advisoryhttps://security.nozominetworks.com/NN-2026:13-01