CVE-2025-6704

State: Published
Severity: 9.8 Critical
Published: Jul 21, 2025
Updated: Jul 21, 2025
Reserved: Jun 26, 2025

Description

An arbitrary file writing vulnerability in the Secure PDF eXchange (SPX) feature of Sophos Firewall versions older than 21.0 MR2 (21.0.2) can lead to pre-auth remote code execution, if a specific configuration of SPX is enabled in combination with the firewall running in High Availability (HA) mode.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Sophos

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
Sophos FirewallSophos	before 21.0 MR2 (21.0.2)Affected

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce

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