CVE-2025-62792: wazuh — Exploit & Fix

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-126 CWE-126

CWE-170 CWE-170

Affected Products

Vendor	Product	Versions
wazuh	wazuh	< 4.12.0

References

Advisories & Patches

https://github.com/wazuh/wazuh/security/advisories/GHSA-2672-vfhm-xhr6

Exploits

https://github.com/wazuh/wazuh/security/advisories/GHSA-2672-vfhm-xhr6

Frequently Asked Questions

What is CVE-2025-62792? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-62792? +

CVE-2025-62792 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-62792? +

CVE-2025-62792 affects products from wazuh, specifically: wazuh. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-62792? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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