Sophos Firewall and UTM

CVE-2020-12271: SFOS SQL Injection

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.

Published

ExploitedYes, in CISA KEVAdded 3 Nov 2021
Ransomware useKnownPer CISA
SeverityCRITICALCVSS 3.0 10
EPSS42%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
n/a n/aSee the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

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)

Exploitation

CISA lists this CVE as exploited in the wild since 3 Nov 2021, including in ransomware campaigns.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

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