CVE-2025-62792: wazuh Buffer Over-read

Vulnerability summary

CVE-2025-62792 is a high (CVSS 7.5) Buffer Over-read vulnerability in wazuh. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 29-10-2025
   PublishedVulnerability first disclosed.
2. 29-10-2025
   Last modifiedVulnerability information updated.

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.12.0, a buffer over-read occurs in w_expression_match() when strlen() is called on str_test, because the corresponding buffer is not being properly NULL terminated during its allocation in OS_CleanMSG(). 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. This vulnerability is fixed in 4.12.0.

• CWE-126Buffer Over-readThe product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
• CWE-170Improper Null TerminationThe product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator.