CVEs / CVE-2022-1040
CVE-2022-1040: Sophos Firewall Authentication Bypass Vulnerability
- Known exploited in the CISA KEV catalog since 31 Mar 2022
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.7% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Sophos Sophos Firewall | from unspecified, up to and including 18.5 MR3 | — |
Exploitation
| In CISA KEV since | 31 Mar 2022 |
|---|---|
| Due date for US federal agencies | 21 Apr 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|
References
- CVE-2022-1040 on NVD
- CVE-2022-1040 in the CISA KEV catalog
- http://packetstormsecurity.com/files/168046/Sophos-XG115w-Firewall-17.0.10-MR-10-Authentication-Bypass.html Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/51006 Exploit, Third Party Advisory, VDB Entry
- https://www.sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rce Mitigation, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1040 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.