# CVE-2018-0180: Cisco IOS Software Denial-of-Service Vulnerability

> CVE-2018-0180: Cisco IOS Software Denial-of-Service Vulnerability. CVSS 6.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-0180
Last updated: 2026-01-12T22:03:46Z

- Published: 2018-03-28 22:00 UTC · Updated: 2026-01-12 22:03 UTC · Assigner: cisco
- CVSS: 6.8 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS: 4.9%, 92th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-03, federal due date 2022-03-17, ransomware use: Unknown
- CWE: CWE-399

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- n/a: Cisco IOS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-0180)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-0180)
- [https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-slogin](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-slogin)
- [http://www.securityfocus.com/bid/103556](http://www.securityfocus.com/bid/103556)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-0180 · Markdown: https://rewindex.com/cve/CVE-2018-0180.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-0180 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:44:05.054Z