Known Vulnerabilities for Ios by Cisco

Listed below are 10 of the newest known vulnerabilities associated with "Ios" by "Cisco".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

More device details and information can be found at device.report here: Cisco Ios

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-20301 json Not Provided 2026-08-05 2026-09-17
CVE-2026-20012 json Not Provided 2026-03-25 2026-09-17
CVE-2025-20352 json Not Provided 2025-09-24 2026-09-26
CVE-2025-20327 json Not Provided 2025-09-24 2026-09-26
CVE-2025-20160 json Not Provided 2025-09-24 2026-09-26
CVE-2025-20149 json Not Provided 2025-09-24 2026-09-26
CVE-2023-20186 json A vulnerability in the Authentication, Authorization, and Accounting (AAA) feature of Cisco IOS Software and Cisco IOS XE Sof... 9.1 - CRITICAL 2023-09-27 2024-01-25
CVE-2023-20109 json A vulnerability in the Cisco Group Encrypted Transport VPN (GET VPN) feature of Cisco IOS Software and Cisco IOS XE Software ... 6.6 - MEDIUM 2023-09-27 2024-01-25
CVE-2023-20081 json Not Provided 2023-03-23 2026-08-11
CVE-2023-20080 json A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an... 7.5 - HIGH 2023-03-23 2023-11-07
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System		CiscoIos\(4\)st
Operating
System		CiscoIosfd-1.5.0
Operating
System		CiscoIos9.14
Operating
System		CiscoIos9.1
Operating
System		CiscoIos9.0
Operating
System		CiscoIos8.3
Operating
System		CiscoIos8.2
Operating
System		CiscoIos4.1.2
Operating
System		CiscoIos4.1.1
Operating
System		CiscoIos4.1
Operating
System		CiscoIos3.7.3e
Operating
System		CiscoIos3.7.2e
Operating
System		CiscoIos3.7.1e
Operating
System		CiscoIos3.7.0e
Operating
System		CiscoIos3.6.4e
Operating
System		CiscoIos3.6.3e
Operating
System		CiscoIos3.6.2e
Operating
System		CiscoIos3.6.2ae
Operating
System		CiscoIos3.6.1e
Operating
System		CiscoIos3.6.0e
Results limited to 20 most recent known configurations

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