CVE-2025-40889

HIGH
Published Oct 7, 2025 Modified Oct 9, 2025 CWE-22

Description

A path traversal vulnerability was discovered in the Time Machine functionality due to missing validation of two input parameters. An authenticated user with limited privileges, by issuing a specifically-crafted request, can potentially alter the structure and content of files in the /data folder, and/or affect their 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
nozominetworks cmc
nozominetworks guardian

References

Frequently Asked Questions

What is CVE-2025-40889? +
A path traversal vulnerability was discovered in the Time Machine functionality due to missing validation of two input parameters. An authenticated user with limited privileges, by issuing a specifically-crafted request, can potentially alter the structure and content of files in the /data folder, and/or affect their availability. It has a CVSS v3.1 base score of 8.1 (HIGH).
How severe is CVE-2025-40889? +
CVE-2025-40889 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-2025-40889? +
CVE-2025-40889 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-2025-40889? +
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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