Is CVE-2017-6627 actively exploited?

Yes. CVE-2017-6627 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-6627 be exploited remotely?

The attack vector of CVE-2017-6627 has not been classified yet.

What is the CVSS score of CVE-2017-6627?

CVE-2017-6627 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-6627

HIGHCISA KEVIN THE WILD

CVE-2017-6627

Published: March 3, 2022

EPSS:10.83%probability of exploitation in 30 daysPercentile:93.2th

Official Description

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.

NVD Source

CISA KEV Advisory

Cisco IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-Service Vulnerability

Added to KEV: 2022-03-03Federal patch deadline: 2022-03-24

Required Action (CISA)

Apply updates per vendor instructions.

Technical Analysis

CVE-2017-6627 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2017-6627 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.