Vulnerability Intelligence Report
Sophos Firewall Authentication Bypass Vulnerability
CVE-2022-1040
An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:99.80%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-158 ↗CWE-158 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Sophos | Sophos Firewall | unspecified <= 18.5 MR3 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.796%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Sophos Limited · Vendor · UK |
| Reserved | 2022-03-21T00:00:00 |
| Published | 2022-03-25T12:10:10 |
| Last Updated | 2025-10-21T23:15:43 |
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