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4.3

Splunk Enterprise: Unauthenticated Phishing Attack Can Cause System Restart

CVE-2025-20322 · published 1 year ago
Summary

An attacker can trick an administrator into clicking on a malicious link, causing a denial-of-service (system restart) on the Splunk Enterprise system. This requires the attacker to phish the administrator, not directly gain access to the system. Update your Splunk Enterprise to the latest version to prevent this.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
splunk splunk >= 9.1.0, < 9.1.10
>= 9.2.0, < 9.2.7
>= 9.3.0, < 9.3.5
>= 9.4.0, < 9.4.3
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
splunk splunk_cloud_platform >= 9.2.2406, < 9.2.2406.119
>= 9.3.2408, < 9.3.2408.113
>= 9.3.2411, < 9.3.2411.104
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Original advisory text
In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, an unauthenticated attacker could send a ...
In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, an unauthenticated attacker could send a specially-crafted SPL search command that could trigger a rolling restart in the Search Head Cluster through a Cross-Site Request Forgery (CSRF), potentially leading to a denial of service (DoS).<br><br>The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will.<br><br>See [How rolling restart works](https://docs.splunk.com/Documentation/Splunk/9.4.2/DistSearch/RestartSHC) for more information.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
4.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-352Cross-Site Request Forgery (CSRF)
Timeline
Published7 Jul 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-20322 · NVD
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