Critical 9.8Known exploited (CISA KEV)Published Sep 23, 2022

CVE-2022-3236A 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.

Updated under an hour ago (2026-10-19 09:30 UTC)

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It affects Sophos Firewall. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Sep 23, 2022; federal agencies had to remediate by Oct 14, 2022. Treat that date as your deadline.

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Every CVE for Sophos Firewall

Exploited in the last 30 days

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: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Added to CISA KEV Sep 23, 2022; federal remediation due Oct 14, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 98.88% (percentile 100)
Assigned by: Sophos
NVD analysis: Analyzed
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Sophos Sophos Firewall sophos:firewall (from the name)	from unspecified through 18.5 MR4; from unspecified through 19.0 MR1	CNA record
sophos firewall sophos:firewall	through 19.0.1	NVD

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20220923-sfos-rcex-refsource-confirm, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-3236us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.