Answer in brief
CVE-2023-7340 records a Medium severity (CVSS 5.3) vulnerability in Wazuh authd service (os_auth) Heap-based Buffer Overflow. The current sources do not mark it as known exploited. The current feed maps Wazuh/Wazuh (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Wazuh/Wazuh (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:wazuh:wazuh:4.3.10:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Wazuh/Wazuhgeneric | >=3.5.0 <=4.3.10 | Not reported |
Published upstream
Mar 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 29, 2026
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.
Quoted source text, attributed separately from HOL analysis.