CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Sophos SFOS SQL Injection Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
A SQL injection issue was found in SFOS 17.0, 17.1, 17.5, and 18.0 before 2020-04-25 on Sophos XG Firewall devices, as exploited in the wild in April 2020. This affected devices configured with either the administration (HTTPS) service or the User Portal exposed on the WAN zone. A successful attack may have caused remote code execution that exfiltrated usernames and hashed passwords for the local device admin(s), portal admins, and user accounts used for remote access (but not external Active Directory or LDAP passwords)
Affected products
sophos: sfos; sophos: xg firewall
References7
- community.sophos.com/kb/en-us/135412 Vendor Advisory
- news.sophos.com/en-us/2020/04/26/asnarok/ ExploitVendor Advisory
- community.sophos.com/kb/en-us/135412 Vendor Advisory
- news.sophos.com/en-us/2020/04/26/asnarok/ ExploitVendor Advisory
- cwe.mitre.org/data/definitions/89.html Third Party Advisory
- cwe.mitre.org/data/definitions/89.html Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 42% percentile: 99 · as of 2 November 2026
- CWE
- CWE-89