CVE-2018-0174
Actively exploited. CVE-2018-0174 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 DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
CSIRTS triage
- What
- A vulnerability in the DHCP option 82 encapsulation functionality could allow for denial-of-service (DoS).
- Who is affected
- Users of Cisco IOS and IOS XE Software are affected by this vulnerability.
- Urgency
- Immediate action is required due to the critical nature of the vulnerability and confirmed exploitation.
- Action
- Apply the latest updates for Cisco IOS and IOS XE Software.
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-2018-0174: Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerabilitycisa-kev · 2022-03-03
External references
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