CVE-2026-112335

Description

Wazuh agent from 1.0.0 before 4.14.9 contains a stack-based buffer overflow in the logcollector snort-full log reader that miscalculates remaining buffer space in read_snortfull(). Attackers who write crafted multi-line content to a monitored snort-full log can overflow the 65,280-byte stack buffer, crashing the agent or overwriting an SEH handler on 32-bit Windows agents running as SYSTEM.

References

• https://github.com/wazuh/wazuh/releases/tag/v4.14.9
• https://github.com/wazuh/wazuh/security/advisories/GHSA-3gq8-gg8f-5h8h
• https://www.vulncheck.com/advisories/wazuh-agent-1.0.0-before-4.14.9-stack-buffer-overflow-via-read-snortfull