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.

CVSS 4.0

7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2025-10-07

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• nozominetworks:cmc
• nozominetworks:guardian

References

• https://security.nozominetworks.com/NN-2025:9-01

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