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CVE-2026-32984— Heap buffer overflow in wazuh-authd

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问题，可能导致攻击者发送特制输入造成内存损坏和堆数据畸形，从而触发拒绝服务条件。

CVSS 3.5 · Low EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 2

VendorProduct Version RangeStatus
Wazuh Wazuh 3.5.0 affected
4.3.10 affected
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I. Basic Information for CVE-2026-32984

Vulnerability Information
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Vulnerability Title
Heap buffer overflow in wazuh-authd
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 impact on the availability of 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问题，可能导致攻击者发送特制输入造成内存损坏和堆数据畸形，从而触发拒绝服务条件。
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 -

II. Public POCs for CVE-2026-32984

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III. Intelligence Information for CVE-2026-32984

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Vendor Advisories for CVE-2026-32984 (1)

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-2023-7340 3.5 LOW Wazuh authd service (os_auth) Heap-based Buffer Overflow

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-32984

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