CVE-2018-0180
Published 2018-03-28 · Updated 2026-06-17 · Source psirt@cisco.com
Summary
CVE-2018-0180 is a medium-severity (CVSS 5.9) vulnerability in Cisco IOS 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 vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599.
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA Known-Exploited Vulnerability
Product: Cisco — IOS Software
Name: Cisco IOS Software Denial-of-Service Vulnerability
Date added: 2022-03-03 · Due: 2022-03-17
Required action: Apply updates per vendor instructions.
References
- http://www.securityfocus.com/bid/103556
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-slogin
- http://www.securityfocus.com/bid/103556
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-slogin
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0180

