CWE-693 Protection Mechanism Failure in Cisco Firmware
CVE-2026-76301 Published on October 21, 2026
Security Hardening in Splunk Enterprise - October 2026
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.
Weakness Type
Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This weakness covers three distinct situations. A "missing" protection mechanism occurs when the application does not define any mechanism against a certain class of attack. An "insufficient" protection mechanism might provide some defenses - for example, against the most common attacks - but it does not protect against everything that is intended. Finally, an "ignored" mechanism occurs when a mechanism is available and in active use within the product, but the developer has not applied it in some code path.
Products Associated with CVE-2026-76301
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Affected Versions
Splunk Enterprise:- Version 10.4 and below 10.4.4 is affected.
- Version 10.2 and below 10.2.8 is affected.
- Version 10.0 and below 10.0.11 is affected.
- Version 9.4 and below 9.4.16 is affected.