cvedb.io
CVE-2021-3422
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-03-25T19:15:08.983 · Last modified 2026-06-17T04:05:03.630

Summary

The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium.

Affected products

splunk — splunk

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.