CVE-2017-6674: A vulnerability in the feature-license management functionality of Cisco Firepower System Software could al...

Security readout for executives and security teams

CVE-2017-6674 affects Cisco Firepower System Software and can let an unauthenticated remote attacker bypass configured URL filters. This weakens a security control rather than directly compromising the device. Business risk is highest where Firepower URL filtering is relied on for web access control, compliance, or malware exposure reduction. Exposure is likely limited to organizations running affected Cisco Firepower System Software versions with URL filtering configured and relied upon for policy enforcement. The bundle does not identify specific hardware models, deployment modes, internet exposure requirements, or vulnerable configurations beyond affected software releases. Prioritize remediation for environments where Cisco Firepower URL filtering enforces compliance, acceptable-use, or threat-reduction controls. This is not evidenced as active exploitation, but it can create silent policy failure if affected systems remain in service. Mitigation focus: Inventory Cisco Firepower System Software versions in production and management environments.; Review Cisco advisory cisco-sa-20170524-fmc and defect CSCvb16413 for vendor guidance.; Upgrade affected deployments to the Cisco-listed fixed release for the relevant software train..

Prepared

Jun 13, 2026, 04:43 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.