Critical severity · published Oct 21, 2026
CVE-2026-76301
Security Hardening in Splunk Enterprise - October 2026
New
9.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Splunk Enterprise · Splunk
10.4 before 10.4.4; 10.2 before 10.2.8; 10.0 before 10.0.11; 9.4 before 9.4.16 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76301
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76301
advisory.splunk.com
https://advisory.splunk.com/advisories/SVD-2026-1008
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