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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-44254 Detail

Description

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/os_crypto/shared/msgs.c decompresses up to OS_MAXSTR bytes at that offset. For an encrypted agent message on TCP port 1514 that expands to 65,536 bytes, os_zlib_uncompress() writes a terminating null byte beyond the end of the destination buffer. The resulting stack out-of-bounds write in the root-level remoted daemon can crash message processing and disrupt agent communications. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/wazuh/wazuh/commit/96772487fbdecd43cc83e284ee7aeb45e3cfcd96 GitHub, Inc.
https://github.com/wazuh/wazuh/pull/35773 GitHub, Inc.
https://github.com/wazuh/wazuh/releases/tag/v4.14.6 GitHub, Inc.
https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2 GitHub, Inc.
https://github.com/wazuh/wazuh/security/advisories/GHSA-9wm4-fp6c-hqgq GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-131 Incorrect Calculation of Buffer Size GitHub, Inc.  
CWE-787 Out-of-bounds Write GitHub, Inc.  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-44254
NVD Published Date:
08/19/2026
NVD Last Modified:
08/19/2026
Source:
GitHub, Inc.