CVE-2018-0156
Actively exploited. CVE-2018-0156 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 Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial-of-service (DoS) condition.
CSIRTS triage
- What
- A vulnerability in the Smart Install feature could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial-of-service condition.
- Who is affected
- Users of Cisco IOS Software and IOS XE Software are affected.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Apply the recommended patches from Cisco.
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 94% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2018-0156: Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerabilitycisa-kev · 2022-03-03
External references
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