What is CVE-2018-0180?

CVE-2018-0180 is a medium-severity vulnerability in Cisco 1000 Integrated Services Router, classified under CWE-399. CVSS score: 5.9/10. Published 2018-03-28.

How severe is CVE-2018-0180?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2018-0180 known to be exploited?

Yes. CVE-2018-0180 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Vulnerability in Cisco 1000 Integrated Services Router

CVE-2018-0180

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.

Published 2018-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.049 (92.0th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.049 · newest: 0.049 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-399

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-03-17.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328… (Mitigation, Vendor Advisory)
www.securityfocus.com/bid/103556 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-0180?: CVE-2018-0180 is a medium-severity vulnerability in Cisco 1000 Integrated Services Router, classified under CWE-399. CVSS score: 5.9/10. Published 2018-03-28.
How severe is CVE-2018-0180?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2018-0180 known to be exploited?: Yes. CVE-2018-0180 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.