CVE-2025-40889

Path traversal in Time Machine functionality in Guardian/CMC before 25.2.0

Published Oct 7, 2025 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Upgrade to v25.2.0 or later.


Vendor Workaround

Use internal firewall features to limit access to the web management interface.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*
cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Nozominetworks
Nozominetworks cmc
Nozominetworks guardian
Vendors & Products Nozominetworks
Nozominetworks cmc
Nozominetworks guardian
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Path traversal in Time Machine functionality in Guardian/CMC before 25.2.0
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Nozomi
Published
Updated
Oct 7, 2025, 1:08 PM
Reserved
Apr 16, 2025, 9:04 AM
Status
Analyzed
Published
Oct 7, 2025, 1:15 PM
Modified
Oct 18, 2026, 9:10 PM