Vulnerability · Published Mar 27, 2026 · Assigned by VulnCheck
CVE-2023-7340Wazuh authd service (os_auth) Heap-based Buffer Overflow
Low 3.5
In plain English
A low-severity out-of-bounds read in Wazuh from Wazuh. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)0.3%top 73.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
References
- https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r vendor-advisory
- https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd third-party-advisory