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CVE-2025-6704

Published: Jul 21, 2025Updated: Aug 18, 2025 Sources: CVE List NVD BDUCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
8.2%
Top 5.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

Sophos FirewallSophos Ltd.
Mixed
Networking Infrastructure / firewall
Sophos FirewallSophosSecurity Products
firewall firmwaresophosSecurity Products
sophos ltd.commercialNetworking Infrastructureaka sfos, sophos firewall, sophos web appliance (swa)
sophoscommercialGBSecurity Productsaka sophos ltd.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce
sophos.com
https://www.cve.org/CVERecord?id=CVE-2025-6704
cve.org
https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce
sophos.com

Timeline

Published
Jul 21, 2025
Last Updated
Aug 18, 2025

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