CVE-2025-34294

Oct. 28, 2025, 4:15 p.m.

7.1
High

Description

Wazuh's File Integrity Monitoring (FIM), when configured with automatic threat removal, contains a time-of-check/time-of-use (TOCTOU) race condition that can allow a local, low-privileged attacker to cause the Wazuh service (running as NT AUTHORITY\SYSTEM) to delete attacker-controlled files or paths. The root cause is insufficient synchronization and lack of robust final-path validation in the threat-removal workflow: the agent records an active-response action and proceeds to perform deletion without guaranteeing the deletion target is the originally intended file. This can result in SYSTEM-level arbitrary file or folder deletion and consequent local privilege escalation. Wazuh made an attempted fix via pull request 8697 on 2025-07-10, but that change was incomplete.

Product(s) Impacted

Vendor Product Versions
Wazuh
  • Wazuh
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a wazuh wazuh / / / / / / / /

References

https://documentation.wazuh.com/current/user-manual/capabilities/active-response/index.html
https://github.com/wazuh/wazuh-documentation/pull/8697
https://wazuh.com/blog/detecting-and-responding-to-malicious-files-using-cdb-lists-and-active-response/
https://www.vulncheck.com/advisories/wazuh-file-integrity-monitoring-and-active-response-arbitrary-file-deletion-as-system

Tags

CWE-367
disclosure@vulncheck.com
2025-10-28
CVE-2025-34294

CVSS Score

7.1 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Attack Requirements: PRESENT
  • Privileges Required: LOW
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: NONE
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: Oct. 28, 2025, 4:15 p.m.
Last Modified: Oct. 28, 2025, 4:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

disclosure@vulncheck.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.