CVE-2025-40898

HIGH

Nozomi Networks CMC/Guardian <25.5.0 Authenticated Path Traversal & Arbitrary File Write

Title source: llm

Description

A path traversal vulnerability was discovered in the Import Arc data archive functionality due to insufficient validation of the input file. An authenticated user with limited privileges, by uploading a specifically-crafted Arc data archive, can potentially write arbitrary files in arbitrary paths, altering the device configuration and/or affecting its availability.

References (2)

Core 2

Core References

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-827968.html

Mitigation, Vendor Advisory

https://security.nozominetworks.com/NN-2025:15-01

Scores

CVSS v3 8.1

EPSS 0.0034

EPSS Percentile 25.5%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-22

Status published

Products (4)

Nozomi Networks/CMC < 25.5.0

Nozomi Networks/Guardian < 25.5.0

nozominetworks/cmc < 25.5.0

nozominetworks/guardian < 25.5.0

Published Dec 18, 2025

Tracked Since Feb 18, 2026