What is CVE-2023-7340?

CVE-2023-7340 is a low-severity vulnerability in Wazuh, classified under Out-of-bounds Read. CVSS score: 3.1/10. Published 2026-03-27.

How severe is CVE-2023-7340?

Low severity. CVSS v3 base score is 3.1 out of 10.

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…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (8.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (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)

CWE-125 — Out-of-bounds Read

References

github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r (vendor-advisory)
www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd (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: 3.1/10. Published 2026-03-27.
How severe is CVE-2023-7340?: Low severity. CVSS v3 base score is 3.1 out of 10.