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CVE-2017-6663KEV

Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerability

Severity
Medium6.5CVSS 3.1, Medium
EPSS
2%
Published
7 Aug 2017
Updated
17 Jun 2026

Description

Title, description and vendor guidance are quoted from the source records.

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 a denial of service (DoS) condition. More Information: CSCvd88936. Known Affected Releases: Denali-16.2.1 Denali-16.3.1.

Known exploited

Added to CISA KEV on 3 Mar 2022

Federal remediation due date: 24 Mar 2022

Required action: Apply updates per vendor instructions.

Exploit prediction

2% probability of exploitation in the next 30 days (percentile 81%).

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Patcharo shows this vulnerability for information but does not match versions for this product yet.

  • n/a Cisco IOS and IOS XE · Cisco IOS and IOS XE

References

Provenance

Every fact on this page comes from the sources below. Nothing is written by an AI.

Cisco (CVE record)
Cisco (CVE record) · 27 Sept 2026, 23:46 UTC · Parser patcharo-cve5/1.1.0
CISA Known Exploited Vulnerabilities
CISA Known Exploited Vulnerabilities · 27 Sept 2026, 23:42 UTC · Parser patcharo-kev/1.0.0
NVD
NVD · 27 Sept 2026, 23:44 UTC · Parser patcharo-nvd/1.0.0
FIRST EPSS
FIRST EPSS · 27 Sept 2026, 23:46 UTC · Parser patcharo-epss/1.0.0

Last verified: 28 Sept 2026, 02:31 UTC