Denial of Service Vulnerability in Splunk Enterprise and Splunk Cloud
CVE-2025-20370

4.9MEDIUM

Key Information:

Vendor

Splunk
Status
Splunk Enterprise
Splunk Enterprise Cloud
Vendor
CVE Published:
1 October 2025

What is CVE-2025-20370?

In specific versions of Splunk Enterprise and Splunk Cloud, users with high-privilege capabilities can exploit a vulnerability by sending multiple LDAP bind requests to an internal endpoint. This action can lead to excessive CPU utilization on the server, which may cause a denial of service. To restore services, an instance restart is necessary. Users and administrators are recommended to upgrade to the latest versions to mitigate this risk. For further technical guidance, please refer to the official Splunk resources.

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Deploy the Patch

Affected Version(s)

Splunk Enterprise 10.0 < 10.0.1

Splunk Enterprise 9.4 < 9.4.4

Splunk Enterprise 9.3 < 9.3.6

References

https://advisory.splunk.com/advisories/SVD-2025-1005

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

STĂ–K / Fredrik Alexandersson
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