CVE-2018-0167
HIGHCISA KEVEPSS 87th pctlDescription
Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCuo17183, CSCvd73487.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 87% of all known CVEs.
Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability
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.
Apply updates per vendor instructions.
Remediation due: 2022-03-17
References
- http://www.securityfocus.com/bid/103564
- http://www.securitytracker.com/id/1040586
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0167
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-14.