Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-7340— Wazuh authd service (os_auth) Heap-based Buffer Overflow

Quick assessment

Affected
Wazuh Wazuh
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wazuh是Wazuh开源的一个应用软件。用于收集，汇总，索引和分析安全数据，帮助组织检测入侵，威胁和行为异常。 Wazuh存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致内存损坏和拒绝服务。

CVSS 3.5 · Low EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Wazuh Wazuh 3.5.0≤ 4.3.10 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-7340

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Wazuh authd service (os_auth) Heap-based Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Wazuh 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wazuh是Wazuh开源的一个应用软件。用于收集，汇总，索引和分析安全数据，帮助组织检测入侵，威胁和行为异常。 Wazuh存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致内存损坏和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wazuh Wazuh 3.5.0 ~ 4.3.10 -

II. Public POCs for CVE-2023-7340

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-7340

请登录查看更多情报信息。

Vendor Advisories for CVE-2023-7340 (2)

Same Patch Batch · Wazuh · 2026-03-27 · 7 CVEs total

CVE-2025-15616 6.7 MEDIUM Wazuh Agent and Manager OS Command Injection and Untrusted Search Path
CVE-2025-15617 6.5 MEDIUM Wazuh GitHub Actions Workflow Exposure of Sensitive Credentials
CVE-2026-32983 5.8 MEDIUM SSL/TLS Renegotiation DoS in Wazuh Manager authd service
CVE-2025-15615 5.8 MEDIUM Wazuh Manager authd service Improper SSL/TLS Renegotiation Handling leading to Denial of S
CVE-2025-15612 4.8 MEDIUM Wazuh Provisioning Scripts / Build Infrastructure Improper Certificate Validation leading
CVE-2026-32984 3.5 LOW Heap buffer overflow in wazuh-authd

IV. Related Vulnerabilities

Same product: Wazuh
Same vendor: Wazuh
Same weakness: CWE-125

V. Comments for CVE-2023-7340

No comments yet

Leave a comment