CVE-2023-7340

LOW 3.1

Wazuh authd service (os_auth) Heap-based Buffer Overflow

CVSS Score

3.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-125
Vendor	wazuh
Product	wazuh
Published	Mar 27, 2026
Last Updated	Mar 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

Wazuh / Wazuh

3.5.0 4.3.10

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r vulncheck.com: https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd

Credits

Reported by @vikman90; credited to @stasos24.