CVE-2025-6704
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-21

Last updated on: 2025-08-18

Assigner: Sophos Limited

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)Β 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.
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Meta Information
Published
2025-07-21
Last Modified
2025-08-18
Generated
2026-05-07
AI Q&A
2025-07-21
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
sophos firewall_firmware to 21.0.2 (exc)
sophos firewall *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is an arbitrary file writing flaw in the Secure PDF eXchange (SPX) feature of Sophos Firewall versions older than 21.0 MR2 (21.0.2). It can allow an attacker to execute code remotely without authentication if SPX is configured in a specific way and the firewall is running in High Availability (HA) mode.


How can this vulnerability impact me? :

The vulnerability can lead to remote code execution by an attacker without needing to authenticate, potentially allowing full control over the affected firewall. This can compromise the confidentiality, integrity, and availability of the network protected by the firewall.


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