CVE-2026-44254

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG, and src/oscrypto/shared/msgs.c decompresses up to OSMAXSTR byt...

CVE-2026-44254

In Wazuh versions 1.0.0 through 4.14.5, the root-level remoted daemon (TCP port 1514) writes a null terminator beyond a stack buffer during zlib decompression of agent messages, causing a denial of service. Exploitation is unconfirmed; patch to 4.14.6 or 5.0.0-beta2. https://github.com/wazuh/wazu...

EUVD-2026-62554

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG, and src/oscrypto/shared/msgs.c decompresses up to OSMAXSTR byt...

CVE-2026-44254 Wazuh: Stack Out-of-Bounds Write in remoted Decompression Path

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG, and src/oscrypto/shared/msgs.c decompresses up to OSMAXSTR byt...

The vulnerability of the authd and remoted processes of the monitoring and threat detection platform Wazuh allows a malicious actor to gain unauthorized access to protected information.

The vulnerability of the registration demon authd and the synchronization demon remoted of the Wazuh platform for security monitoring and threat detection is related to an incorrect restriction on the path name to the catalog. Exploiting this vulnerability could allow a malicious actor to gain...

CVE-2026-44251

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.0.0 and above, prior to 4.14.5, a sizet integer underflow in oscrypto/shared/msgs.c:389 allows any enrolled Wazuh agent to crash the wazuh-remoted process on the manager, immediately...

CVE-2026-39359

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 4.0.0 through 4.10.3 and 4.11.0 through 4.14.4, a logic flaw affects the Wazuh Manager's enrollment daemon authd and synchronization daemon remoted. The authd process allows agents to select ...

EUVD-2026-45089

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.0.0 and above, prior to 4.14.5, a sizet integer underflow in oscrypto/shared/msgs.c:389 allows any enrolled Wazuh agent to crash the wazuh-remoted process on the manager, immediately...

CVE-2026-28221

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-41499 Wazuh: Multiple Heap-based NULL WRITE Buffer Underflows in parse_uname_string()

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, multiple heap-based out-of-bounds WRITE vulnerabilities exist in parseunamestring remotedop.c. This function processes OS identification data from agents and...

CVE-2026-28221 Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221 Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

EUVD-2026-26270

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in printhexstring in wazuh-remoted. The bug is triggered when formatting attacker-controlled bytes using sprintfdstbuf +...

CVE-2026-28221

CVE-2026-28221 – Wazuh pre-auth stack-based buffer overflow is confirmed in wazuh-remoted’s print_hex_string(). From versions 4.8.0 to before 4.14.4, attacker-controlled bytes are formatted with sprintf(dst_buf + 2*i, "%.2x", src_buf[i]) on signed-char platforms, causing sign-extension and an out...

CVE-2020-8447

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis ossec-analysisd is vulnerable to a use-after-free during processing of syscheck formatted msgs received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted...

Double free

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis ossec-analysisd is vulnerable to a use-after-free during processing of ossec-alert formatted msgs received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted...

CVE-2020-8447

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis ossec-analysisd is vulnerable to a use-after-free during processing of syscheck formatted msgs received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted...

PT-2020-20147 · Trend Micro · Ossec-Hids

Name of the Vulnerable Software and Affected Versions: OSSEC-HIDS versions 2.7 through 3.5.0 Description: The server component responsible for log analysis, ossec-analysisd, is vulnerable to a use-after-free during processing of syscheck formatted msgs. These messages are received from...