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CVE record · CVE-2017-6627

A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected syste…

CVSS 7.5 HighCriticalIn CISA KEVEPSS 0.062 · 93rd percentile

Critical, because:

  • In CISA’s KEV catalogue since 3 Mar 2022: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: cisco) at 7 Sept 2017, 21:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Not given Cisco IOS and Cisco IOS XE
  • affected Cisco IOS and Cisco IOS XE
Identifiers
CVE-2017-6627
CNA
cisco
Weakness (CWE)
CWE-399
Tags
Published
7 Sept 2017
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 3 Mar 2022: known to be exploited.
  • EPSS 0.062, the 93rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 7 Sept 2017. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.