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CVE-2025-20370— Denial of Service (DoS) through Multiple LDAP Bind Requests in Splunk Enterprise

Quick assessment

Affected
Splunk Splunk Enterprise
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.

Splunk Cloud Platform和Splunk Enterprise都是美国Splunk公司的产品。Splunk Cloud Platform是一个强大的数据收集、处理和分析服务。Splunk Enterprise是一套数据收集分析软件。 Splunk Cloud Platform和Splunk Enterprise存在资源管理错误漏洞，该漏洞源于高权限用户可发送多个LDAP绑定请求，可能导致高服务器CPU使用率和拒绝服务。以下版本受到影响：Splunk Enterprise 10.0.1之前版

CVSS 4.9 · Medium EPSS 0.56% · P45
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I. Basic Information for CVE-2025-20370

Vulnerability Information
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Vulnerability Title
Denial of Service (DoS) through Multiple LDAP Bind Requests in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions below 10.0.1, 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.108, 9.3.2408.118 and 9.2.2406.123, a user who holds a role that contains the high-privilege capability `change_authentication`, could send multiple LDAP bind requests to a specific internal endpoint, resulting in high server CPU usage, which could potentially lead to a denial of service (DoS) until the Splunk Enterprise instance is restarted. See https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.0/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities and https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.0/use-ldap-as-an-authentication-scheme/configure-ldap-with-splunk-web#cfe47e31_007f_460d_8b3d_8505ffc3f0dd__Configure_LDAP_with_Splunk_Web for more information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Splunk Cloud Platform和Splunk Enterprise 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Splunk Cloud Platform和Splunk Enterprise都是美国Splunk公司的产品。Splunk Cloud Platform是一个强大的数据收集、处理和分析服务。Splunk Enterprise是一套数据收集分析软件。 Splunk Cloud Platform和Splunk Enterprise存在资源管理错误漏洞，该漏洞源于高权限用户可发送多个LDAP绑定请求，可能导致高服务器CPU使用率和拒绝服务。以下版本受到影响：Splunk Enterprise 10.0.1之前版
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
Splunk Splunk Enterprise 10.0 ~ 10.0.1 -
Splunk Splunk Enterprise Cloud 9.3.2411 ~ 9.3.2411.108 -

II. Public POCs for CVE-2025-20370

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III. Intelligence Information for CVE-2025-20370

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Vendor Advisories for CVE-2025-20370 (1)

Same Patch Batch · Splunk · 2025-10-01 · 6 CVEs total

CVE-2025-20371 7.5 HIGH Unauthenticated Blind Server Side Request Forgery (SSRF) in Splunk Enterprise
CVE-2025-20366 6.5 MEDIUM Improper Access Control in Background Job Submission in Splunk Enterprise
CVE-2025-20368 5.7 MEDIUM Stored Cross-Site Scripting (XSS) through missing field warning messages in Saved Search a
CVE-2025-20367 5.7 MEDIUM Reflected Cross-site Scripting (XSS) in '/app/search/table' endpoint through the 'dataset.
CVE-2025-20369 4.6 MEDIUM Extensible Markup Language (XML) External Entity Injection (XXE) through Dashboard label f

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-400

V. Comments for CVE-2025-20370

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