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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-3236

Sophos Firewall Code Injection Vulnerability

KEVCRITICAL 9.8EPSS 98.9%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 October 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A code injection vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v19.0 MR1 and older.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
98.91% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 23 September 2022 · due 14 October 2022
Weakness
CWE-94
Affected
sophos/firewall
Source
security-alert@sophos.com
EPSS trend
0%50%100%30 October 2026: 98.91%30 October 202630 October 2026

EPSS 98.9% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://www.sophos.com/en-us/security-advisories/sophos-sa-20220923-sfos-rce; https://nvd.nist.gov/vuln/detail/CVE-2022-3236

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.