CVE-2026-112335Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow via read_snortfull

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• GitHub Security Advisory (GHSA-3gq8-gg8f-5h8h) vendor-advisory
• wazuh v4.14.9 Release Notes release-notes
• VulnCheck Advisory: Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow via read_snortfull third-party-advisory