CVE-2025-6704
Sophos Firewall Arbitrary File Writing Remote Code Execution Vulnerability
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.
INFO
Published Date :
July 21, 2025, 2:15 p.m.
Last Modified :
July 22, 2025, 1:06 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-6704.
| URL | Resource |
|---|---|
| https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-6704 vulnerability anywhere in the article.
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The Hacker News
Sophos and SonicWall Patch Critical RCE Flaws Affecting Firewalls and SMA 100 Devices
Jul 24, 2025Ravie LakshmananNetwork Security / Vulnerability Sophos and SonicWall have alerted users of critical security flaws in Sophos Firewall and Secure Mobile Access (SMA) 100 Series appliance ... Read more
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security.nl
Kritiek lek in Sophos Firewall maakt remote code execution mogelijk
Twee kritieke kwetsbaarheden in de Sophos Firewall maken remote code execution door een ongeauthenticeerde aanvaller mogelijk. Sophos heeft hotfixes uitgebracht om de problemen (CVE-2025-6704 en CVE-2 ... Read more
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CybersecurityNews
Critical Sophos Firewall Vulnerabilities Enables pre-auth Remote Code Execution
Multiple security vulnerabilities affecting Sophos firewall products, with two enabling pre-authentication remote code execution that could allow attackers to compromise systems without valid credenti ... Read more
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Daily CyberSecurity
Urgent Sophos Firewall Update: Two Critical RCE Flaws (CVE-2025-6704, CVE-2025-7624) Patched via Hotfixes
Sophos has issued a security advisory detailing the remediation of five vulnerabilities in Sophos Firewall, including two critical flaws that could allow remote attackers to gain control of affected d ... Read more
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Daily CyberSecurity
Critical Flaw (CVE-2025-24936, CVSS 9.0) in Nokia WaveSuite NOC Expose Telecom Networks to RCE
Nokia’s WaveSuite NOC (WS-NOC) platform—an integral part of network operations for telecom and enterprise environments— exists two severe vulnerabilities, CVE-2025-24938 and CVE-2025-24936, both of wh ... Read more
The following table lists the changes that have been made to the
CVE-2025-6704 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 21, 2025
Action Type Old Value New Value 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-6704 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-6704
weaknesses.