CVE-2021-41821: Wazuh

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Wazuh Manager in Wazuh through 4.1.5 is affected by a remote Integer Underflow vulnerability that might lead to denial of service. A crafted message must be sent from an authenticated agent to the manager.

Affected products

• Wazuh Wazuh: up to and including 4.1.5

Published 2021-09-29. Last modified 2026-06-17.