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CVE-2017-6663

A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated,…

Medium6.5Known exploitedEPSS 2.1%
Published
Updated
Reserved
Assigned by
cisco

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

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerability.

Added
3 Mar 2022
Fix due (US federal)
24 Mar 2022
Used by ransomware
Not known

Apply updates per vendor instructions.

Scores

CVSS scores of CVE-2017-6663, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Analyzed3.1Medium6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
2.1% · top 18% of all CVEs (3 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

  • Denial of Service Vulnerability
  • CWE-noinfo Not enough information

Affected products

  • Cisco IOS and IOS XE

    • affected Cisco IOS and IOS XE

References (4)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .