🛡️ CVE-2025-40898 — cmc

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-22 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability high.

Weakness class

CVE-2025-40898 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2025-40898 is recorded against 2 packages.

  • cmc (fixed in 25.5.0)
  • guardian (fixed in 25.5.0)

Timeline and source

Published on 18 December 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

security.nozominetworks.com
cert-portal.siemens.com

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE CWE-22
Public Exploit ✅ No
Source NVD
Published 2025-12-18
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
cmc — 25.5.0
guardian — 25.5.0

Similar Threats

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