Sophos Firewall and UTM
CVE-2021-25268: Multiple XSS in Sophos Firewall
Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from MySophos admin to SFOS admin in Sophos Firewall older than version 19.0 GA.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 8.4
EPSS0.91%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 unspecified | 19.0 GA or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from MySophos admin to SFOS admin in Sophos Firewall older than version 19.0 GA.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.