{"schema_version":1,"title":"Cisco IOS XR Software vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 9 vulnerabilities in Cisco IOS XR Software: 0 in the last 7 days and 6 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, CVE-2026-20280, was published on 2 September 2026.","url":"https://junglewise.ai/threats/technologies/ios-xr-software","json_url":"https://junglewise.ai/threats/technologies/ios-xr-software.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/ios-xr-software","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":6,"all_time":9,"critical":3,"exploited":0,"last_7_days":0,"last_30_days":6,"last_90_days":6,"last_365_days":8},"latest":[{"cve":"CVE-2026-20280","cvss":8.8,"epss":0.0029,"slug":"cve-2026-20280-cisco-ios-xr-software-improper-exception-handling","title":"Cisco IOS XR Software improper exception handling","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:33.58+00:00","url":"https://junglewise.ai/threats/cve-2026-20280-cisco-ios-xr-software-improper-exception-handling"},{"cve":"CVE-2026-20279","cvss":9.8,"epss":0.003,"slug":"cve-2026-20279-cisco-ios-xr-software-improper-access-control","title":"Cisco IOS XR Software improper access control","severity":"critical","exploited":false,"published_at":"2026-09-02T17:17:33.42+00:00","url":"https://junglewise.ai/threats/cve-2026-20279-cisco-ios-xr-software-improper-access-control"},{"cve":"CVE-2026-20277","cvss":8.2,"epss":0.0023,"slug":"cve-2026-20277-cisco-ios-xr-software-protection-mechanism-failure","title":"Cisco IOS XR Software protection mechanism failure","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:33.11+00:00","url":"https://junglewise.ai/threats/cve-2026-20277-cisco-ios-xr-software-protection-mechanism-failure"},{"cve":"CVE-2026-20276","cvss":8.6,"epss":0.0027,"slug":"cve-2026-20276-cisco-ios-xr-software-control-flow-management-vulnerability","title":"Cisco IOS XR Software control flow management vulnerability","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:32.957+00:00","url":"https://junglewise.ai/threats/cve-2026-20276-cisco-ios-xr-software-control-flow-management-vulnerability"},{"cve":"CVE-2026-20275","cvss":8.8,"epss":0.002,"slug":"cve-2026-20275-cisco-ios-xr-software-incorrect-calculation-vulnerability","title":"Cisco IOS XR Software incorrect calculation vulnerability","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:32.79+00:00","url":"https://junglewise.ai/threats/cve-2026-20275-cisco-ios-xr-software-incorrect-calculation-vulnerability"},{"cve":"CVE-2026-20274","cvss":9.8,"epss":0.0073,"slug":"cve-2026-20274-cisco-ios-xr-software-resource-control-vulnerabilities","title":"Cisco IOS XR Software resource control vulnerabilities","severity":"critical","exploited":false,"published_at":"2026-09-02T17:17:32.63+00:00","url":"https://junglewise.ai/threats/cve-2026-20274-cisco-ios-xr-software-resource-control-vulnerabilities"},{"cve":"CVE-2026-20074","cvss":7.4,"epss":0.0016,"slug":"cve-2026-20074-cisco-ios-xr-software-dos-in-is-is-multi-instance-routing","title":"Cisco IOS XR Software DoS in IS-IS Multi-Instance Routing","severity":"high","exploited":false,"published_at":"2026-03-11T17:16:55.47+00:00","url":"https://junglewise.ai/threats/cve-2026-20074-cisco-ios-xr-software-dos-in-is-is-multi-instance-routing"},{"cve":"CVE-2026-20046","cvss":8.8,"epss":0.0014,"slug":"cve-2026-20046-cisco-ios-xr-software-privilege-escalation-in-task-group","title":"Cisco IOS XR Software privilege escalation in task group assignment","severity":"high","exploited":false,"published_at":"2026-03-11T17:16:55.23+00:00","url":"https://junglewise.ai/threats/cve-2026-20046-cisco-ios-xr-software-privilege-escalation-in-task-group"},{"cve":"CVE-2025-20363","cvss":9,"epss":0.0692,"slug":"cve-2025-20363-cisco-multiple-platforms-code-execution-in-web-services","title":"Cisco multiple platforms code execution in web services","severity":"critical","exploited":false,"published_at":"2025-09-25T16:15:32.497+00:00","url":"https://junglewise.ai/threats/cve-2025-20363-cisco-multiple-platforms-code-execution-in-web-services"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":2,"exploited":0,"vulnerabilities":6},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Cisco IOS","slug":"ios","vulnerabilities":69,"url":"https://junglewise.ai/threats/technologies/ios"},{"name":"Cisco IOS XE","slug":"ios-xe","vulnerabilities":53,"url":"https://junglewise.ai/threats/technologies/ios-xe"},{"name":"Cisco Identity Services Engine","slug":"identity-services-engine","vulnerabilities":51,"url":"https://junglewise.ai/threats/technologies/identity-services-engine"},{"name":"Cisco Firepower Threat Defense Software","slug":"firepower-threat-defense-software","vulnerabilities":32,"url":"https://junglewise.ai/threats/technologies/firepower-threat-defense-software"},{"name":"Cisco IOS XR","slug":"ios-xr","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/ios-xr"},{"name":"Cisco IOS XE Software","slug":"ios-xe-software","vulnerabilities":27,"url":"https://junglewise.ai/threats/technologies/ios-xe-software"},{"name":"Cisco Firepower Threat Defense","slug":"firepower-threat-defense","vulnerabilities":22,"url":"https://junglewise.ai/threats/technologies/firepower-threat-defense"},{"name":"Cisco Adaptive Security Appliance Software","slug":"secure-firewall-asa-software","vulnerabilities":22,"url":"https://junglewise.ai/threats/technologies/secure-firewall-asa-software"},{"name":"Cisco Ios Software","slug":"ios-software","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/ios-software"},{"name":"Cisco ISE Passive Identity Connector","slug":"ise-passive-identity-connector","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/ise-passive-identity-connector"},{"name":"Cisco Secure Firewall Management Center","slug":"secure-firewall-management-center","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/secure-firewall-management-center"},{"name":"Cisco Catalyst SD-WAN Manager","slug":"catalyst-sd-wan-manager","vulnerabilities":12,"url":"https://junglewise.ai/threats/technologies/catalyst-sd-wan-manager"}],"technology":{"hub":true,"name":"Cisco IOS XR Software","slug":"ios-xr-software","vendor":{"name":"Cisco","slug":"cisco","url":"https://junglewise.ai/threats/vendors/cisco"},"aliases":[],"category":"operating-system","homepage":"https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xr-software/index.html","description":"Cisco IOS XR is a distributed network operating system designed for service provider routers.","url":"https://junglewise.ai/threats/technologies/ios-xr-software"},"most_severe":[{"cve":"CVE-2026-20274","cvss":9.8,"epss":0.0073,"slug":"cve-2026-20274-cisco-ios-xr-software-resource-control-vulnerabilities","title":"Cisco IOS XR Software resource control vulnerabilities","severity":"critical","exploited":false,"published_at":"2026-09-02T17:17:32.63+00:00","url":"https://junglewise.ai/threats/cve-2026-20274-cisco-ios-xr-software-resource-control-vulnerabilities"},{"cve":"CVE-2026-20279","cvss":9.8,"epss":0.003,"slug":"cve-2026-20279-cisco-ios-xr-software-improper-access-control","title":"Cisco IOS XR Software improper access control","severity":"critical","exploited":false,"published_at":"2026-09-02T17:17:33.42+00:00","url":"https://junglewise.ai/threats/cve-2026-20279-cisco-ios-xr-software-improper-access-control"},{"cve":"CVE-2025-20363","cvss":9,"epss":0.0692,"slug":"cve-2025-20363-cisco-multiple-platforms-code-execution-in-web-services","title":"Cisco multiple platforms code execution in web services","severity":"critical","exploited":false,"published_at":"2025-09-25T16:15:32.497+00:00","url":"https://junglewise.ai/threats/cve-2025-20363-cisco-multiple-platforms-code-execution-in-web-services"},{"cve":"CVE-2026-20280","cvss":8.8,"epss":0.0029,"slug":"cve-2026-20280-cisco-ios-xr-software-improper-exception-handling","title":"Cisco IOS XR Software improper exception handling","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:33.58+00:00","url":"https://junglewise.ai/threats/cve-2026-20280-cisco-ios-xr-software-improper-exception-handling"},{"cve":"CVE-2026-20275","cvss":8.8,"epss":0.002,"slug":"cve-2026-20275-cisco-ios-xr-software-incorrect-calculation-vulnerability","title":"Cisco IOS XR Software incorrect calculation vulnerability","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:32.79+00:00","url":"https://junglewise.ai/threats/cve-2026-20275-cisco-ios-xr-software-incorrect-calculation-vulnerability"},{"cve":"CVE-2026-20046","cvss":8.8,"epss":0.0014,"slug":"cve-2026-20046-cisco-ios-xr-software-privilege-escalation-in-task-group","title":"Cisco IOS XR Software privilege escalation in task group assignment","severity":"high","exploited":false,"published_at":"2026-03-11T17:16:55.23+00:00","url":"https://junglewise.ai/threats/cve-2026-20046-cisco-ios-xr-software-privilege-escalation-in-task-group"},{"cve":"CVE-2026-20276","cvss":8.6,"epss":0.0027,"slug":"cve-2026-20276-cisco-ios-xr-software-control-flow-management-vulnerability","title":"Cisco IOS XR Software control flow management vulnerability","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:32.957+00:00","url":"https://junglewise.ai/threats/cve-2026-20276-cisco-ios-xr-software-control-flow-management-vulnerability"},{"cve":"CVE-2026-20277","cvss":8.2,"epss":0.0023,"slug":"cve-2026-20277-cisco-ios-xr-software-protection-mechanism-failure","title":"Cisco IOS XR Software protection mechanism failure","severity":"high","exploited":false,"published_at":"2026-09-02T17:17:33.11+00:00","url":"https://junglewise.ai/threats/cve-2026-20277-cisco-ios-xr-software-protection-mechanism-failure"},{"cve":"CVE-2026-20074","cvss":7.4,"epss":0.0016,"slug":"cve-2026-20074-cisco-ios-xr-software-dos-in-is-is-multi-instance-routing","title":"Cisco IOS XR Software DoS in IS-IS Multi-Instance Routing","severity":"high","exploited":false,"published_at":"2026-03-11T17:16:55.47+00:00","url":"https://junglewise.ai/threats/cve-2026-20074-cisco-ios-xr-software-dos-in-is-is-multi-instance-routing"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}