CVE-2025-62789: wazuh Null Dereference

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, fim_alert() implementation does not check whether the return value of ctime_r is NULL or not before calling strdup() on it. A compromised agent can cause a crash of analysisd 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 analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0.

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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:N/I:N/A:H

Weakness Type (CWE)

CWE-252 CWE-252

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
wazuh	wazuh	< 4.11.0

References

Advisories & Patches

https://github.com/wazuh/wazuh/security/advisories/GHSA-8rvq-mm2f-8q22

Exploits

https://github.com/wazuh/wazuh/security/advisories/GHSA-8rvq-mm2f-8q22

Frequently Asked Questions

What is CVE-2025-62789? +

Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, fim_alert() implementation does not check whether the return value of ctime_r is NULL or not before calling strdup() on it. A compromised agent can cause a crash of analysisd 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 analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-62789? +

CVE-2025-62789 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-2025-62789? +

CVE-2025-62789 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-2025-62789? +

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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