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CVE-2017-3881: Cisco IOS and IOS XE Remote Code Execution Vulnerability
Cisco IOS and IOS XE · in CISA KEV since 2022-03-25
2022-03-25added to KEV
2022-04-15federal remediation due date
98.95%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
1,834days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2017-03-17 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2017-3881.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.