Paper/Archive/CVE-2025-6704

CVE-2025-6704

Sophos Sophos Firewall — An arbitrary file writing vulnerability in the Secure PDF eXchange (SPX) feature of Sophos Firewall versions older than 21.0 MR2 (21.0.2)…

EPSS 12%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 96.1.961 × 2019.2 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Sophos Firewall< 21.0 MR2 (21.0.2)21.0 MR2 (21.0.2)CNA

Scores by source

Sophos (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce