CVE-2026-76301

Security Hardening in Splunk Enterprise - October 2026

State: Published
Severity: 9.8 Critical
Published: Oct 21, 2026
Updated: Oct 28, 2026
Reserved: Aug 19, 2026

Description

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76301 are related to protection mechanism failure and are grouped under the Common Weakness Enumeration (CWE) CWE-693.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Affected Products

Product	Versions
Splunk EnterpriseSplunk	10.4 to before 10.4.4Affected 10.2 to before 10.2.8Affected 10.0 to before 10.0.11Affected 9.4 to before 9.4.16Affected

References

https://advisory.splunk.com/advisories/SVD-2026-1008

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