Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability

Added to KEV
2022-03-03
Federal due date
2022-03-17
Vendor
Cisco
Product
IOS and IOS XE Software
EPSS
90.7th percentile (score 0.059, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2018-0151

CISA short description

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.