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TI-2023-05110 Aliases CVE-2023-5552GHSA-m2g3-pg3w-frm3

Information disclosure in Sophos Firewall

Priority LOW 34CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

A password disclosure vulnerability in the Secure PDF eXchange (SPX) feature allows attackers with full email access to decrypt PDFs in Sophos Firewall version 19.5 MR3 (19.5.3) and older, if the password type is set to “Specified by sender”.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00553 46th percentileScored 2026-11-07
Fix Fixed Sophos Firewall (Sophos): 19.5.4, 20.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SophosSophos Firewall—19.5.4, 20.0.0Patch availableCNA
  • Sophos Firewall VendorSophos Affected — Fixed in 19.5.4, 20.0.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sophos:firewall:*:*:*:*:*:*:*:*up to 19.5.3VulnerableSophos
  • cpe:2.3:a:sophos:firewall:*:*:*:*:*:*:*:* Versions up to 19.5.3 Vulnerable ·Sophos

Remediation

  • Fix · CNA Sophos Firewall (Sophos) Fixed in 19.5.4, 20.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-5552
  2. 2026-10-03 Alias added: GHSA-m2g3-pg3w-frm3

References

Advisory 1

  • TI-2022-02989 Code injection in Sophos Firewall KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-01673 SQL injection in Sophos Firewall CVSS 3.1HIGH 7.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences