CVE-2017-3881
Cisco IOS and IOS XE Remote Code Execution Vulnerability
What is affected
| Vendor | Cisco |
|---|---|
| Product | IOS and IOS XE |
| Weakness | CWE-20 |
The vulnerability
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.
Required action
Apply updates per vendor instructions.
US federal civilian agencies were required to act by 15 April 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 11 Nov 2026, 21:30. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
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