CVE-2025-40898: cmc Path Traversal — Fix

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.

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CVSS v3.1 Score

8.1

HIGH

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

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
nozominetworks	cmc	< 25.5.0
nozominetworks	guardian	< 25.5.0

References

Advisories & Patches

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

Other References

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

Frequently Asked Questions

What is CVE-2025-40898? +

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. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2025-40898? +

CVE-2025-40898 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-40898? +

CVE-2025-40898 affects products from nozominetworks, specifically: cmc, guardian. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-40898? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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