Sophos Firewall and UTM
CVE-2024-12728: Weak credentials in Sophos Firewall
A weak credentials vulnerability potentially allows privileged system access via SSH to Sophos Firewall older than version 20.0 MR3 (20.0.3).
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.8
EPSS0.94%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Sophos Firewall 0 | 20.0 MR3 (20.0.3) or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A weak credentials vulnerability potentially allows privileged system access via SSH to Sophos Firewall older than version 20.0 MR3 (20.0.3).
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.