ACTIVELY EXPLOITED

CVE-2018-0179: Cisco IOS Software Denial-of-Service Vulnerability

Facts
VendorCisco
ProductIOS Software
Actively exploitedYes
Added to CISA KEV3 Mar 2022
CISA federal deadline17 Mar 2022
Weakness (CWE)CWE-399

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A vulnerability 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.

SOURCES

Other Cisco flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.