CVE-2018-0167

HIGH8.8

CISA KEV

Published 2018-03-28 · Updated 2026-06-17 · Source psirt@cisco.com

Summary

CVE-2018-0167 is a high-severity (CVSS 8.8) vulnerability in Cisco IOS, XR, and XE Software. CISA added it to the Known Exploited Vulnerabilities catalog on March 3, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 17, 2022. CISA does not currently list it as used in ransomware campaigns. Cisco has 102 vulnerabilities in the KEV catalog, 7 of them linked to ransomware.

All 102 known-exploited Cisco vulnerabilities →

Description

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 vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-119CWE-119

CISA Known-Exploited Vulnerability

Product: Cisco — IOS, XR, and XE Software

Name: Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability

Date added: 2022-03-03 · Due: 2022-03-17

Required action: Apply updates per vendor instructions.

References

View on NVD

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