When does Cisco support end for the Cisco 819 Hardened Integrated Services Router?

Cisco support for the Cisco 819 Hardened Integrated Services Router is scheduled to end on 2027-01-31.

C819HWD-E-K9

Announced in: Cisco 819 Hardened Integrated Services Router

Cisco Chassis · ISR 800 series

High confidence Official Cisco notice (EOL13747) ↗ Verified 2026-04-26

C819HWD-E-K9 is at risk. Vendor support is ending soon. Cisco support ends 2027-01-31 (+187d).

Is the Cisco 819 Hardened Integrated Services Router still supported?

Support is ending soon. Cisco will end support for the Cisco 819 Hardened Integrated Services Router on 2027-01-31. See Cisco's lifecycle bulletin.

When does the Cisco 819 Hardened Integrated Services Router reach end of support?

Cisco support for the Cisco 819 Hardened Integrated Services Router ends on 2027-01-31.

What replaces the Cisco 819 Hardened Integrated Services Router?

Cisco has not published a successor model for the Cisco 819 Hardened Integrated Services Router.

What known-exploited CVEs apply to the C819HWD-E-K9 past end of support?

40 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform the Cisco 819 Hardened Integrated Services Router runs. These will not be patched on this device because it is past the Cisco security-support date. See the Known Exploited Vulnerabilities table below for the full list.

Known Exploited Vulnerabilities

This device is past Cisco's security-support date. 40 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform it runs. Cisco is not issuing patches for this model. Isolate, compensate, or refresh.

CVE	KEV added	Vulnerability
`CVE-2008-4128`	2026-07-13	Cisco IOS Cross-Site Request Forgery Vulnerability Advisory 1 Advisory 2 Advisory 3
`CVE-2025-20352`	2025-09-29	Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability Advisory 1 Advisory 2
`CVE-2023-20273`	2023-10-23	Cisco IOS XE Web UI Command Injection Vulnerability Advisory 1 Advisory 2
`CVE-2023-20198`	2023-10-16	Cisco IOS XE Web UI Privilege Escalation Vulnerability Advisory 1 Advisory 2
`CVE-2023-20109`	2023-10-10	Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability Advisory 1 Advisory 2
`CVE-2004-1464`	2023-05-19	Cisco IOS Denial-of-Service Vulnerability Advisory 1 Advisory 2
`CVE-2016-6415`	2023-05-19	Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability Advisory 1 Advisory 2
`CVE-2017-6742`	2023-04-19	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1 Advisory 2
`CVE-2017-3881`	2022-03-25	Cisco IOS and IOS XE Remote Code Execution Vulnerability Advisory 1
`CVE-2018-0180`	2022-03-03	Cisco IOS Software Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0179`	2022-03-03	Cisco IOS Software Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0175`	2022-03-03	Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability Advisory 1
`CVE-2018-0174`	2022-03-03	Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability Advisory 1
`CVE-2018-0173`	2022-03-03	Cisco IOS and IOS XE Software Improper Input Validation Vulnerability Advisory 1
`CVE-2018-0172`	2022-03-03	Cisco IOS and IOS XE Software Improper Input Validation Vulnerability Advisory 1
`CVE-2018-0167`	2022-03-03	Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability Advisory 1
`CVE-2018-0161`	2022-03-03	Cisco IOS Software Resource Management Errors Vulnerability Advisory 1
`CVE-2018-0159`	2022-03-03	Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0158`	2022-03-03	Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability Advisory 1
`CVE-2018-0156`	2022-03-03	Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0154`	2022-03-03	Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0151`	2022-03-03	Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6744`	2022-03-03	Cisco IOS Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6743`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6740`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6739`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6738`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6737`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6736`	2022-03-03	Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-6663`	2022-03-03	Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerability Advisory 1
`CVE-2017-6627`	2022-03-03	Cisco IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12319`	2022-03-03	Cisco IOS XE Software Ethernet Virtual Private Network Border Gateway Protocol Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12240`	2022-03-03	Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability Advisory 1
`CVE-2017-12237`	2022-03-03	Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12235`	2022-03-03	Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12234`	2022-03-03	Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12233`	2022-03-03	Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12232`	2022-03-03	Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability Advisory 1
`CVE-2017-12231`	2022-03-03	Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability Advisory 1
`CVE-2018-0171`	2021-11-03	Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability Advisory 1

Source: CISA Known Exploited Vulnerabilities catalog. The Ransomware flag reflects CISA's own knownRansomwareCampaignUse field, set when the CVE has been observed in ransomware campaigns per their threat intel. It's not a property of the vulnerability description itself.

Correlation is at the platform level, not per-OS-version. Not exhaustive: KEV only lists actively-exploited CVEs and many relevant unexploited vulnerabilities are not here. Verify against vendor security advisories (PSIRT, JSA, PAN-SA) and NVD before acting. See compensating controls if refresh isn't immediate.

Announced 2021-01-11

End of Sale 2022-01-11

End of Support 2027-01-31

Today

C819HWD-E-K9 Lifecycle Overview

The Cisco C819HWD-E-K9 (C819HWD-E-K9) is a chassis product in the Cisco ISR 800 series. Cisco support for this product is ending soon. The last date of support is 2027-01-31. After that date, no further software updates, security patches, or hardware replacements will be provided.

Lifecycle Milestones

Lifecycle notice published	2021-01-11	5y 7mo ago
End of sale	2022-01-11	4y 7mo ago
Last order date	2022-04-12	4y 4mo ago
End of software maintenance	2023-01-11	3y 7mo ago
End of failure analysis	2023-01-11	3y 7mo ago
End of security vulnerability support	2025-01-10	1y 7mo ago
Last date of support	2027-01-31	in 6mo

Applicable Platforms

ISR 800 series

C819HWD-E-K9

Is the Cisco 819 Hardened Integrated Services Router still supported?

When does the Cisco 819 Hardened Integrated Services Router reach end of support?

What replaces the Cisco 819 Hardened Integrated Services Router?

What known-exploited CVEs apply to the C819HWD-E-K9 past end of support?

Known Exploited Vulnerabilities

C819HWD-E-K9 Lifecycle Overview

Lifecycle Milestones

Other ISR 800 series SKUs

Sunsetting around the same time