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CVE-2017-6627: Cisco IOS Software and Cisco IOS XE Software UDP Packet Processing 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
6.16%EPSS exploit probability (30 days) 93.2th percentile
7.5 HIGHCVSS 3.1
Unknownknown ransomware use
1,638days from NVD publication to KEV
What it is
A vulnerability in the UDP processing code of Cisco IOS and IOS XE could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and denial of service.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-399 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2017-09-07 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2017-6627.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.