Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.

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Advisories

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Fixes

Solution

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Workaround

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History

Fri, 27 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Mar 2026 20:00:00 +0000

Type Values Removed Values Added
Title Heap buffer overflow in wazuh-authd Wazuh authd service (os_auth) Heap-based Buffer Overflow
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'}

cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'}


Fri, 27 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Description Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.
Title Heap buffer overflow in wazuh-authd
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-27T19:41:30.868Z

Reserved: 2026-03-27T15:51:18.381Z

Link: CVE-2023-7340

cve-icon Vulnrichment

Updated: 2026-03-27T16:55:49.928Z

cve-icon NVD

Status : Received

Published: 2026-03-27T16:16:20.427

Modified: 2026-03-27T16:16:20.427

Link: CVE-2023-7340

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-27T20:28:15Z

Weaknesses