CVE-2022-1040
Sophos Firewall Authentication Bypass
- Published25 Mar 2022
- Added to CISA KEV31 Mar 2022
- Remediation due21 Apr 2022
Description
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 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
- http://packetstormsecurity.com/files/168046/Sophos-XG115w-Firewall-17.0.10-MR-10-Authentication-Bypass.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1040
- https://www.exploit-db.com/exploits/51006
- https://www.sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rce
Frequently asked
Is CVE-2022-1040 being actively exploited?
Yes. CVE-2022-1040 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 31 Mar 2022.
How severe is CVE-2022-1040?
CVE-2022-1040 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 99.8% probability of exploitation.
Which products are affected by CVE-2022-1040?
Affected products include Sophos Sfos.
How do I fix CVE-2022-1040?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2022-1040 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.