What’s Vulnerable › Vulnerabilities

CVE-2021-25267

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-05 · updated 2026-06-17
• Weakness: CWE-79

Description

Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from admin to super-admin in Sophos Firewall older than version 19.0 GA.

Affected products

• Sophos Firewall: before 19.0 — fixed in 19.0

How to fix

Upgrade to a fixed version: Sophos Firewall 19.0. Check the vendor advisory for mitigations.

References

• https://www.sophos.com/en-us/security-advisories/sophos-sa-20220505-sfos-19-0-0
• https://www.sophos.com/en-us/security-advisories/sophos-sa-20220505-sfos-19-0-0

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