CVE-2025-6704

Published Jul 21, 2025 CVSS 3.1 · 9.8 Critical EPSS 11.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-22086 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.
History
Type Values Removed Values Added
First Time appeared Sophos
Sophos firewall
Sophos firewall Firmware
CPEs cpe:2.3:h:sophos:firewall:-:*:*:*:*:*:*:*
cpe:2.3:o:sophos:firewall_firmware:*:*:*:*:*:*:*:*
Vendors & Products Sophos
Sophos firewall
Sophos firewall Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Sophos
Published
Updated
Jul 21, 2025, 3:07 PM
Reserved
Jun 26, 2025, 9:41 AM
Status
Analyzed
Published
Jul 21, 2025, 2:15 PM
Modified
Jun 17, 2026, 10:02 AM