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CVE-2025-62791— Wazuh vulnerable to NULL pointer dereference in DecodeCiscat

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 4.11.0之前版本存在代码问题漏洞，该漏洞源于未检查cJSON_GetObjectItem返回值，可能导致分析服务崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-62791

Vulnerability Information
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Vulnerability Title
Wazuh vulnerable to NULL pointer dereference in DecodeCiscat
Source: CVE Program / CVE List V5
Vulnerability Description
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.11.0, DecodeCiscat() implementation does not check the return the value of cJSON_GetObjectItem() for a possible NULL value in case of an error. A compromised agent can cause a crash of analysisd by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause analysisd to crash and make it unavailable. This vulnerability is fixed in 4.11.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加检查的返回值
Source: CVE Program / CVE List V5
Vulnerability Title
Wazuh 代码问题漏洞
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 4.11.0之前版本存在代码问题漏洞，该漏洞源于未检查cJSON_GetObjectItem返回值，可能导致分析服务崩溃。
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 < 4.11.0 -

II. Public POCs for CVE-2025-62791

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III. Intelligence Information for CVE-2025-62791

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Same Patch Batch · wazuh · 2025-10-29 · 8 CVEs total

CVE-2025-62786 Wazuh Vulnerable to Heap-based Buffer Out-Of-Bounds WRITE in decode_win_permissions
CVE-2025-62785 Wazuh fillData NULL pointer dereference causes analysisd crash
CVE-2025-62787 Wazuh Vulnerable to Heap-based Buffer Over-read in DecodeWinevt
CVE-2025-62788 Wazuh Vulnerable to Heap Use After Free in w_copy_event_for_log
CVE-2025-62790 Wazuh vulnerable to NULL pointer dereference in fim_fetch_attributes_state
CVE-2025-62789 Wazuh vulnerable to NULL pointer dereference in fim_alert line 712
CVE-2025-62792 Wazuh vulnerable to Heap-based Buffer Over-read in w_expression_match

IV. Related Vulnerabilities

Same product: wazuh
Same vendor: wazuh
Same weakness: CWE-252

V. Comments for CVE-2025-62791

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