Description
Improper input validation in the OSSEC HIDS agent for Windows prior to version 3.8.0 allows an attacker in with control over the OSSEC server or in possession of the agent's key to configure the agent to connect to a malicious UNC path. This results in the leakage of the machine account NetNTLMv2 hash, which can be relayed for remote code execution or used to escalate privileges to SYSTEM via AD CS certificate forging and other similar attacks.
References (2)
Core 2
Core References
Various Sources
https://pentraze.com/
Various Sources
https://pentraze.com/vulnerability-reports/
Scores
CVSS v4
9.5
EPSS
0.0030
EPSS Percentile
21.1%
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-20
CWE-73
Status
published
Products (1)
OSSEC/OSSEC-HIDS Agent
3.8.0
Published
Jun 11, 2025
Tracked Since
Feb 18, 2026