CVE-2022-1040
9.8
CRITICAL
CVSS 3.1
EPSS 99.8% · 100th pctCISA KEV · Exploited in the wild
2022-03-25Updated 2025-10-21KEV 2022-03-31
CISA Known Exploited Vulnerabilities
Sophos Firewall Authentication Bypass Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Added to KEV
2022-03-31
Remediation due
2022-04-21
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2022-1040
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.
Severity
CVSS 3.1 · CNA9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSSVC · CISA-ADP
Exploitationactive
Automatableyes
Technical impacttotal
Exploitation Context
as of October 13, 2026- CISA added CVE-2022-1040 to the KEV catalog 6 days after its CVE record was published.
- It is one of 7 Sophos entries in the CISA KEV catalog, and one of 3 added in 2022.
- Its current EPSS score (99.8%) is higher than that of 91% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Sophos | Sophos Sophos Firewall | unspecified to 18.5 MR3 |
References
3 LinksRecord Details
Published
2022-03-25
Last updated
2025-10-21
Assigner (CNA)
Sophos
Credited to
-
More from Sophos
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.