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CVE-2017-6663

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

Exploited in attacks Medium 6.5 Attack chance: 2.1%
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What it is

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.

CISA: 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).

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: March 24, 2022

Added to the CISA list
March 3, 2022
Published
August 7, 2017
Severity
Medium 6.5 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
2.1% in the top 18.3% of all known vulnerabilities
More details
NVD · CVE.org · CISA
All references (3)

More exploited flaws from Cisco

AddedVulnerabilityProductSeverityAttack chance
Apr 19, 2023SNMP Remote Code ExecutionCVE-2017-6742IOS and IOS XE SoftwareHigh 8.821%
Mar 3, 2022IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-ServiceCVE-2017-6627IOS and IOS XE SoftwareHigh 7.56.2%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6736IOS and IOS XE SoftwareHigh 8.870%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6737IOS and IOS XE SoftwareHigh 8.845%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6738IOS and IOS XE SoftwareHigh 8.811%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6739IOS and IOS XE SoftwareHigh 8.811%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6740IOS and IOS XE SoftwareHigh 8.811%
Mar 3, 2022SNMP Remote Code ExecutionCVE-2017-6743IOS and IOS XE SoftwareHigh 8.811%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.