VulnSocial

CVE-2025-6704Patch(sophos / firewall)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch sophos firewall systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

sophos CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-78

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firewall
  • firewall_firmware

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
sophos
Products
firewallfirewall_firmware

1 version affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-09: 1Patch / Workaround · 2026-03-09: 1Technical Details · 2026-03-09: 103-09
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • ElOmary@AbedOmary
    Patch

    If your Sophos FW pair is running HA, the auxiliary node is directly reachable by an unauthenticated attacker, ⏬FIX⏬ https://www.linkedin.com/pulse/cve-2025-6704-pre-auth-arbitrary-file-write-rce-sophos-elomary-9z1bf https://t.co/NxNmTg2Hzi

    Post summary

    The tweet informs users of a pre‑authentication arbitrary file write RCE in Sophos firmware (CVE-2025-6704) and points to a link offering a fix.

    0000067
    567 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWsophosfirewall---
OSsophosfirewall_firmware---

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