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CVE-2017-6663: Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerability
Cisco IOS and IOS XE Software · in CISA KEV since 2022-03-03
2022-03-03added to KEV
2022-03-24federal remediation due date
2.12%EPSS exploit probability (30 days) 81.1th percentile
6.5 MEDIUMCVSS 3.1
Unknownknown ransomware use
1,669days from NVD publication to KEV
What it is
A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause autonomic nodes of an affected system to reload, resulting in denial-of-service (DoS).
Required action (CISA)
Apply updates per vendor instructions.
| CWE | — |
|---|---|
| CVSS vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2017-08-07 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2017-6663.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.