Out-of-bounds Read in Wazuh
CVE-2023-7340
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (24.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Wazuh — versions 3.5.0, 4.3.10
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, vendor-advisory, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-7340?
- CVE-2023-7340 is a low-severity vulnerability in Wazuh, classified under Out-of-bounds Read. CVSS score: 3.5/10. Published 2026-03-27.
- How severe is CVE-2023-7340?
- Low severity. CVSS v3 base score is 3.5 out of 10.