CVE-2018-0167
Actively exploited. CVE-2018-0167 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.
There is a buffer overflow vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software which could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code.
CSIRTS triage
- What
- A buffer overflow vulnerability in the LLDP subsystem could allow an attacker to cause a denial of service or execute arbitrary code.
- Who is affected
- Users of Cisco IOS, XR, and XE Software are affected by this vulnerability.
- Urgency
- Remediation is critical due to the severity and exploitation status of the vulnerability.
- Action
- Apply the latest patches for Cisco IOS, XR, and 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 87% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2018-0167: Cisco IOS, XR, and XE Software Buffer Overflow Vulnerabilitycisa-kev · 2022-03-03
External references
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