Wazuh Vulnerable to Heap-based Buffer Over-read in DecodeWinevt_CVE-2025-62787

2.1 / 10

LOW

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

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.10.2, a buffer over-read occurs in DecodeWinevt() when child_attr[p]->attributes[j] is accessed, because the corresponding index (j) is incorrect. A compromised agent can cause a READ operation beyond the end of the allocated buffer (which may contain sensitive information) by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause a buffer over-read and potentially access sensitive data. While the buffer over-read is always triggered while resolving the arguments of mdebug2, specific configuration options (analysisd.debug=2) need to be in place for the respective data to be leaked. This vulnerability is fixed in 4.10.2.

Basic Information

ID CVE-2025-62787

Source GitHub_M

Published Oct 29, 2025 at 16:30

Modified Oct 29, 2025 at 17:38

Affected Product

Vendor wazuh

Product wazuh

Version < 4.10.2

Affected Versions wazuh wazuh < 4.10.2

CWE Classification

CWE-126

References

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    "published": "2025-10-29T16:30:26.950Z",
    "modified": "2025-10-29T17:38:48.781Z",
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