[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHyIdH7nQrjNeqW2hmbmKIVJ8qIyuvqkhssZxUWHfIL8":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"framework_notes":23,"status":24,"created_at":25,"published_at":26,"article":27,"tags":31,"podcasts":50,"controls":57},"6daaa763-b5f6-440d-822c-423bd7d4f2b0","cisco-ise-zero-day-allows-auth-bypass-and-full-device-takeover","93d7aad2-f2cd-42a5-87e3-1bfb7209c9ec","Cisco ISE Zero-Day Allows Auth Bypass and Full Device Takeover","A critical zero-day vulnerability (CVE-2026-76460) in Cisco's Identity Services Engine allows unauthenticated remote attackers to completely bypass authentication, seize device control, alter network policies, and exfiltrate credentials — all without prior access. The fact that this is the second actively exploited zero-day disclosed by Cisco in consecutive days underscores the urgency of maintaining aggressive patch cycles for network infrastructure components. ISE is a cornerstone of network access control, meaning a compromise here can cascade across an entire enterprise environment. CISA's addition to the Known Exploited Vulnerabilities (KEV) catalog confirms active in-the-wild exploitation, making delayed patching an unacceptable risk.","**Immediate Actions:**\n- Apply Cisco's recommended ISE upgrades immediately, prioritizing internet-facing and perimeter-adjacent deployments.\n- Temporarily restrict or isolate ISE management interfaces from untrusted networks until patches are applied.\n- Check CISA's KEV catalog daily and initiate emergency change procedures for any listed product in your environment.\n\n**Long-Term Improvements:**\n- Establish a formal emergency patching SLA (e.g., critical zero-days patched within 24–72 hours) and enforce it through change management policy.\n- Maintain a continuously updated inventory of all network appliances, their software versions, and exposure status.\n- Implement network segmentation to isolate identity and access management systems (like ISE) from general network traffic.\n\n**Detection & Monitoring:**\n- Enable and centralize logging for all authentication events on ISE and alert on anomalous or unauthenticated access attempts.\n- Subscribe to Cisco PSIRT advisories and CISA KEV notifications via automated feed to reduce lag in threat awareness.\n- Deploy behavioral monitoring to detect unexpected policy changes or credential access patterns on network control systems.",[12,13,14,15,16,17,18,19,20,21,22],"CIS Control 7: Continuous Vulnerability Management","CIS Control 12: Network Infrastructure Management","CIS Control 4: Secure Configuration of Enterprise Assets","NIST SP 800-53 SI-2: Flaw Remediation","NIST SP 800-53 AC-17: Remote Access","NIST SP 800-53 IA-2: Identification and Authentication","NIST CSF ID.RA-1: Asset Vulnerabilities Identified","NIST CSF RS.MI-3: Newly Identified Vulnerabilities Mitigated","CISA KEV Catalog Binding Operational Directive 22-01","ITIL Change Management: Emergency Change Procedures","ISO\u002FIEC 27001 A.12.6.1: Management of Technical Vulnerabilities",{},"published","2026-09-17T22:20:47.668484+00:00","2026-09-17T22:20:47.35+00:00",{"id":7,"url":28,"slug":29,"title":30},"https:\u002F\u002Fcyberscoop.com\u002Fcisco-ise-zero-day-cve-2026-76460\u002F","cisco-alerts-customers-to-second-actively-exploited-zero-day-in-as-many-days-234ed8","Cisco alerts customers to second actively exploited zero-day in as many days",[32,38,44],{"id":33,"name":34,"slug":35,"description":36,"color":37},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":39,"name":40,"slug":41,"description":42,"color":43},"1ec88fde-2d0f-4ed8-932a-33f5ccc0fdc7","Access Control","access-control","Excessive privileges, missing MFA, weak auth","#f97316",{"id":45,"name":46,"slug":47,"description":48,"color":49},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",[51],{"id":52,"date":53,"edition":54,"title":55,"audio_url":56},"74d7c287-4038-4542-95c5-997cefd47a05","2026-09-18","morning","ThreatNoir Morning Brief — September 18","https:\u002F\u002Fcdn.threatnoir.com\u002Fpodcasts\u002F2026-09-18\u002Fthreatnoir-morning-brief-2026-09-18.mp3",[58,61,64],{"slug":35,"name":59,"problem":60},"Vulnerability scanning and prioritisation","You know which systems are vulnerable, and which ones to fix first.",{"slug":47,"name":62,"problem":63},"Automated patch management","Known holes get closed in days, not months.",{"slug":65,"name":66,"problem":67},"threat-intelligence","Threat intelligence","Attack campaigns reach your sector, suppliers or software before your team hears about them."]