Tanium addressed a server-side request forgery vulnerability in Threat Response.

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps Tanium/Threat Response (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for Tanium/Threat Response.
2. 2Review the reported fix. Update Tanium/Threat Response to 4.9.454 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

1. Published upstream

   Sep 16, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Sep 16, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Sep 16, 2026

Sources and claim methodology

• Source referencesecurity.tanium.com

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• Cisco FTD ACL bypass vulnerabilitySame generic ecosystem
• Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service VulnerabilitySame generic ecosystem
• Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software Logging Denial of ServiceSame generic ecosystem