VULNERABILITY INTELLIGENCE

CVE-2021-31559

CVSS score7.5 HIGH
EPSS probability0.89%
CISA KEVNot currently listed
Published2022-05-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.

Weakness classification

  • prodsec@splunk.com: CWE-288
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references