Is the Cisco Select Cisco ISR1100 Products end of life?

Yes. The Cisco Cisco Select Cisco ISR1100 Products has reached end of life. Vendor support ended on 2024-03-31.

When is the Cisco Select Cisco ISR1100 Products end of sale date?

The Cisco Cisco Select Cisco ISR1100 Products reached end of sale on 2019-03-20. The last date of vendor support is 2024-03-31.

Home/Cisco/ISR 1000 series/C1101-4PLTEPWA

C1101-4PLTEPWA

Announced in: Cisco Select Cisco ISR1100 Products

Cisco Chassis · ISR 1000 series

High confidence Official Cisco notice (EOL14898) ↗ Verified 2026-04-26

C1101-4PLTEPWA is dead. Cisco support ended 2024-03-31 (-849d). Last available for order 2019-03-20.

Is the Cisco Select Cisco ISR1100 Products still supported?

No. Cisco ended support for the Cisco Select Cisco ISR1100 Products on 2024-03-31. No further security fixes will be issued. See Cisco's lifecycle bulletin.

When does the Cisco Select Cisco ISR1100 Products reach end of support?

Cisco support for the Cisco Select Cisco ISR1100 Products ends on 2024-03-31.

What replaces the Cisco Select Cisco ISR1100 Products?

Cisco has not published a successor model for the Cisco Select Cisco ISR1100 Products.

What known-exploited CVEs apply to the C1101-4PLTEPWA past end of support?

40 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform the Cisco Select Cisco ISR1100 Products 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 2018-09-19

End of Sale 2019-03-20

End of Support 2024-03-31

C1101-4PLTEPWA Lifecycle Overview

The Cisco C1101-4PLTEPWA (C1101-4PLTEPWA) is a chassis product in the Cisco ISR 1000 series. This product has reached end of life as of 2024-03-31, meaning Cisco no longer provides technical support, software updates, or hardware replacement for this product. It was last available for purchase on 2019-03-20. Organizations still running the C1101-4PLTEPWA should plan a migration .

Lifecycle Milestones

Lifecycle notice published	2018-09-19	7y 10mo ago
End of sale	2019-03-20	7y 4mo ago
Last order date	2019-06-18	7y 1mo ago
End of software maintenance	2020-03-19	6y 4mo ago
End of failure analysis	2024-05-08	2y 3mo ago
End of security vulnerability support	2028-05-31	in 1y 10mo
Last date of support	2024-03-31	2y 4mo ago

Applicable Platforms

ISR 1000 series ISR 800 series

C1101-4PLTEPWA

Is the Cisco Select Cisco ISR1100 Products still supported?

When does the Cisco Select Cisco ISR1100 Products reach end of support?

What replaces the Cisco Select Cisco ISR1100 Products?

What known-exploited CVEs apply to the C1101-4PLTEPWA past end of support?

Known Exploited Vulnerabilities

C1101-4PLTEPWA Lifecycle Overview

Lifecycle Milestones

Other ISR 1000 series SKUs

Sunsetting around the same time