CVE-2022-1040
KEVSophos Firewall Authentication Bypass Vulnerability
Description
An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution.
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.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedMar 25, 2022
Last modifiedJun 17, 2026
Added to KEVMar 31, 2022
Remediation dueApr 21, 2022
References
- packetstormsecurity.com/files/168046/Sophos-XG115w-Firewall-17.0.10-MR-10-Authentication-Bypass.htmlExploitThird Party Advisory
- exploit-db.com/exploits/51006ExploitThird Party Advisory
- sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rceMitigationVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1040US Government Resource
0 recent articles mention this CVE
89
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1650 days
- CVSS
- 9.8 CRITICAL
- EPSS (30-day exploit probability)
- 99.8% · top 1% of all CVEs
- Weakness
- NVD-CWE-noinfo
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.