CVE-2017-6663
Actively exploited. CVE-2017-6663 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
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).
CSIRTS triage
- What
- A vulnerability in the Autonomic Networking feature allows adjacent attackers to cause a denial of service.
- Who is affected
- Adjacent unauthenticated attackers can exploit this vulnerability in Cisco IOS and IOS XE Software.
- Urgency
- Remediation is critical due to the high severity and active exploitation.
- Action
- Update Cisco IOS and IOS XE Software to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 80% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2017-6663: Cisco IOS Software and Cisco IOS XE Software Denial-of-Service Vulnerabilitycisa-kev · 2022-03-03
External references
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