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VulnerabilityPublished

CVE-2025-7624: Sophos Firewall · SQL Injection

Affects Sophos FirewallSource CVE Database V5

0

Not known to be exploited · 10% EPSS · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
10.5% chance of exploitation in 30 days – higher than 95% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Sophos Sophos FirewallAffected
  • =0
Fixed in–

AI-suggested

  1. Immediate upgrade to Sophos Firewall version 21.0 MR2 (21.0.2) or later, which addresses this vulnerability.
  2. If immediate upgrade is not feasible, temporarily disable the legacy (transparent) SMTP proxy or the email quarantining policy to reduce the attack surface.
  3. Implement strict network segmentation and firewall rules to limit external access to the management and SMTP proxy interfaces.
  4. Monitor firewall logs and network traffic for unusual SQL queries or suspicious activity indicative of exploitation attempts.
  5. Employ intrusion detection/prevention systems (IDS/IPS) with updated signatures to detect attempts to exploit SQL injection on Sophos Firewall.
  6. Conduct regular vulnerability assessments and penetration tests focusing on firewall components.
  7. Maintain an incident response plan tailored to firewall compromise scenarios to quickly isolate and remediate affected systems.

Description

An SQL injection vulnerability in the legacy (transparent) SMTP proxy of Sophos Firewall versions older than 21.0 MR2 (21.0.2) can lead to remote code execution, if a quarantining policy is active for Email and SFOS was upgraded from a version older than 21.0 GA.

References

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