CVSS
10.0CriticalExploit odds (EPSS)42.4%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Description
Sophos Firewall operating system (SFOS) firmware contains a SQL injection vulnerability when configured with either the administration (HTTPS) service or the User Portal is exposed on the WAN zone. Successful exploitation may cause remote code execution to exfiltrate 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).
Text from CVE List
Affected versions 1
- n/aaffected: n/aCVE List
References 5
- community.sophos.com/kb/en-us/135412Advisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2020-12271Referencevia CISA KEV
- cwe.mitre.org/data/definitions/89.htmlReferencevia CVE List
- news.sophos.com/en-us/2020/04/26/asnarok/Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12271Referencevia CVE List