{"schema_version":1,"title":"Cisco Ios Software vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 19 vulnerabilities in Cisco Ios Software: 0 in the last 7 days and 1 in the last 90 days, 18 of them critical and 17 exploited in the wild. The most recent, CVE-2026-20301, was published on 5 August 2026.","url":"https://junglewise.ai/threats/technologies/ios-software","json_url":"https://junglewise.ai/threats/technologies/ios-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-software","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":19,"critical":18,"exploited":17,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":1},"latest":[{"cve":"CVE-2026-20301","cvss":8.6,"epss":0.0057,"slug":"cve-2026-20301-cisco-ios-and-ios-xe-denial-of-service-in-xmcp","title":"Cisco IOS and IOS XE denial of service in XMCP","severity":"high","exploited":false,"published_at":"2026-08-05T17:16:50.187+00:00","url":"https://junglewise.ai/threats/cve-2026-20301-cisco-ios-and-ios-xe-denial-of-service-in-xmcp"},{"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-2018-0156","cvss":7.5,"slug":"cve-2018-0156-cisco-ios-software-and-cisco-ios-xe-software-smart-install-denial","title":"Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0156-cisco-ios-software-and-cisco-ios-xe-software-smart-install-denial"},{"cve":"CVE-2018-0159","cvss":7.5,"slug":"cve-2018-0159-cisco-ios-and-xe-software-internet-key-exchange-version-1-denial","title":"Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0159-cisco-ios-and-xe-software-internet-key-exchange-version-1-denial"},{"cve":"CVE-2017-6663","cvss":6.5,"slug":"cve-2017-6663-cisco-ios-software-and-cisco-ios-xe-software-denial-of-service","title":"Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-6663-cisco-ios-software-and-cisco-ios-xe-software-denial-of-service"},{"cve":"CVE-2018-0174","cvss":8.6,"slug":"cve-2018-0174-cisco-ios-software-and-cisco-ios-xe-software-improper-input","title":"Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0174-cisco-ios-software-and-cisco-ios-xe-software-improper-input"},{"cve":"CVE-2017-12232","cvss":6.5,"slug":"cve-2017-12232-cisco-ios-software-for-cisco-integrated-services-routers-denial","title":"Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12232-cisco-ios-software-for-cisco-integrated-services-routers-denial"},{"cve":"CVE-2017-6744","cvss":8.8,"slug":"cve-2017-6744-cisco-ios-software-snmp-remote-code-execution-vulnerability","title":"Cisco IOS Software SNMP Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-6744-cisco-ios-software-snmp-remote-code-execution-vulnerability"},{"cve":"CVE-2018-0180","cvss":5.9,"slug":"cve-2018-0180-cisco-ios-software-denial-of-service-vulnerability","title":"Cisco IOS Software Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0180-cisco-ios-software-denial-of-service-vulnerability"},{"cve":"CVE-2017-12231","cvss":7.5,"slug":"cve-2017-12231-cisco-ios-software-network-address-translation-denial-of-service","title":"Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12231-cisco-ios-software-network-address-translation-denial-of-service"},{"cve":"CVE-2018-0154","cvss":7.5,"slug":"cve-2018-0154-cisco-ios-software-integrated-services-module-for-vpn-denial-of","title":"Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0154-cisco-ios-software-integrated-services-module-for-vpn-denial-of"},{"cve":"CVE-2017-12235","cvss":7.5,"slug":"cve-2017-12235-cisco-ios-software-for-cisco-industrial-ethernet-switches","title":"Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12235-cisco-ios-software-for-cisco-industrial-ethernet-switches"},{"cve":"CVE-2018-0161","cvss":6.3,"slug":"cve-2018-0161-cisco-ios-software-resource-management-errors-vulnerability","title":"Cisco IOS Software Resource Management Errors Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0161-cisco-ios-software-resource-management-errors-vulnerability"},{"cve":"CVE-2018-0179","cvss":5.9,"slug":"cve-2018-0179-cisco-ios-software-denial-of-service-vulnerability","title":"Cisco IOS Software Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0179-cisco-ios-software-denial-of-service-vulnerability"},{"cve":"CVE-2018-0151","cvss":9.8,"slug":"cve-2018-0151-cisco-ios-software-and-cisco-ios-xe-software-quality-of-service","title":"Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0151-cisco-ios-software-and-cisco-ios-xe-software-quality-of-service"},{"cve":"CVE-2017-12234","cvss":7.5,"slug":"cve-2017-12234-cisco-ios-software-common-industrial-protocol-request-denial-of","title":"Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12234-cisco-ios-software-common-industrial-protocol-request-denial-of"},{"cve":"CVE-2017-12233","cvss":7.5,"slug":"cve-2017-12233-cisco-ios-software-common-industrial-protocol-request-denial-of","title":"Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12233-cisco-ios-software-common-industrial-protocol-request-denial-of"},{"cve":"CVE-2018-0158","cvss":8.6,"slug":"cve-2018-0158-cisco-ios-and-xe-software-internet-key-exchange-memory-leak","title":"Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0158-cisco-ios-and-xe-software-internet-key-exchange-memory-leak"},{"cve":"CVE-2018-0172","cvss":8.6,"slug":"cve-2018-0172-cisco-ios-and-ios-xe-software-improper-input-validation","title":"Cisco IOS and IOS XE Software Improper Input Validation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0172-cisco-ios-and-ios-xe-software-improper-input-validation"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"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":1},{"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":0,"exploited":0,"vulnerabilities":0},{"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}],"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 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"},{"name":"Cisco Adaptive Security Appliance (ASA)","slug":"adaptive-security-appliance-asa","vulnerabilities":10,"url":"https://junglewise.ai/threats/technologies/adaptive-security-appliance-asa"}],"technology":{"hub":true,"name":"Cisco Ios Software","slug":"ios-software","vendor":{"name":"Cisco","slug":"cisco","url":"https://junglewise.ai/threats/vendors/cisco"},"aliases":[],"category":"os","homepage":"https://www.cisco.com/c/en/us/products/ios-nx-os-software/index.html","description":"A proprietary operating system used on Cisco Systems routers and network switches.","url":"https://junglewise.ai/threats/technologies/ios-software"},"most_severe":[{"cve":"CVE-2018-0151","cvss":9.8,"slug":"cve-2018-0151-cisco-ios-software-and-cisco-ios-xe-software-quality-of-service","title":"Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0151-cisco-ios-software-and-cisco-ios-xe-software-quality-of-service"},{"cve":"CVE-2017-6744","cvss":8.8,"slug":"cve-2017-6744-cisco-ios-software-snmp-remote-code-execution-vulnerability","title":"Cisco IOS Software SNMP Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-6744-cisco-ios-software-snmp-remote-code-execution-vulnerability"},{"cve":"CVE-2018-0174","cvss":8.6,"slug":"cve-2018-0174-cisco-ios-software-and-cisco-ios-xe-software-improper-input","title":"Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0174-cisco-ios-software-and-cisco-ios-xe-software-improper-input"},{"cve":"CVE-2018-0158","cvss":8.6,"slug":"cve-2018-0158-cisco-ios-and-xe-software-internet-key-exchange-memory-leak","title":"Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0158-cisco-ios-and-xe-software-internet-key-exchange-memory-leak"},{"cve":"CVE-2018-0172","cvss":8.6,"slug":"cve-2018-0172-cisco-ios-and-ios-xe-software-improper-input-validation","title":"Cisco IOS and IOS XE Software Improper Input Validation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0172-cisco-ios-and-ios-xe-software-improper-input-validation"},{"cve":"CVE-2017-12231","cvss":7.5,"slug":"cve-2017-12231-cisco-ios-software-network-address-translation-denial-of-service","title":"Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12231-cisco-ios-software-network-address-translation-denial-of-service"},{"cve":"CVE-2018-0156","cvss":7.5,"slug":"cve-2018-0156-cisco-ios-software-and-cisco-ios-xe-software-smart-install-denial","title":"Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0156-cisco-ios-software-and-cisco-ios-xe-software-smart-install-denial"},{"cve":"CVE-2018-0159","cvss":7.5,"slug":"cve-2018-0159-cisco-ios-and-xe-software-internet-key-exchange-version-1-denial","title":"Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0159-cisco-ios-and-xe-software-internet-key-exchange-version-1-denial"},{"cve":"CVE-2018-0154","cvss":7.5,"slug":"cve-2018-0154-cisco-ios-software-integrated-services-module-for-vpn-denial-of","title":"Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-0154-cisco-ios-software-integrated-services-module-for-vpn-denial-of"},{"cve":"CVE-2017-12235","cvss":7.5,"slug":"cve-2017-12235-cisco-ios-software-for-cisco-industrial-ethernet-switches","title":"Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-12235-cisco-ios-software-for-cisco-industrial-ethernet-switches"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}