Sophos Firewall Authentication Bypass Vulnerability

Added to KEV
2022-03-31
Federal due date
2022-04-21
Vendor
Sophos
Product
Firewall
EPSS
100.0th percentile (score 0.944, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-1040

CISA short description

An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution.

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.