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Cisco · IOS and IOS XE Software

CVE-2017-6663

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

CISA KEV record

CISA date added
2022-03-03
CISA due date
2022-03-24
Known ransomware use
Unknown

NVD risk context

6.5 MEDIUM

CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.

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Attack vector
Adjacent
An attacker must be on the same local or adjacent network.
Attack complexity
Low
Exploitation does not require unusual conditions beyond normal attacker control.
Privileges required
None
The attacker does not need an existing account or privileges.
User interaction
None
No action by another user is required.

Description

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

Apply updates per vendor instructions.

NVD reference index

Vendor and remediation references

NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.

Other NVD references (3)

MITRE CWE context

CWE classification

CISA has not listed a CWE classification for this entry.

NVD record timing

NVD record timeline

These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.

NVD published
Aug 07, 2017, 06:29 AM UTC
When NVD first published this CVE record.
NVD last updated
Jun 17, 2026, 01:22 AM UTC
When NVD last changed its analysis or record data.
Advanced: view the technical CVSS vector

This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.

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

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CISA notes

https://nvd.nist.gov/vuln/detail/CVE-2017-6663