CVE-2022-3236
CriticalExploitedPublic exploitA 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.
Published Jan 18, 2023 · Updated Oct 7, 2026 · Also known as TR-23-0029
Key Facts
Patch immediately- CVE-2022-3236 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Firewall (Sophos).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 16, 2022. Public exploit code is available.
- EPSS estimates a 99% probability of exploitation in the next 30 days.
- Fixed versions are available, including Firewall <=19.0.1, Firewall 19.0.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
99%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-3236 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 23, 2022 | Oct 14, 2022 | Not reported |
| Industry KEV feed | Sep 16, 2022 | Oct 14, 2022 | Not reported |
| CIRCL KEV | Sep 23, 2022 | Oct 14, 2022 | Not reported |
| ENISA EUVD | Sep 23, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FirewallSophos | >= unspecified | 19.0.1 |
Patched Releases
Firewall
<=19.0.1
Timeline
Added to Industry KEV feed
Sep 16, 2022
Added to CISA KEV
Sep 23, 2022
Added to CIRCL KEV
Sep 23, 2022
Added to ENISA EUVD
Sep 23, 2022
Publicly disclosed
Jan 18, 2023
Last updated
Oct 7, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2022-3236
- advisoryhttps://vulncheck.com/blog/sophos-cve-2022-3236
- advisoryhttps://www.bleepingcomputer.com/news/security/over-4-000-sophos-firewall-devices-vulnerable-to-rce-attacks/
- advisoryhttps://www.bleepingcomputer.com/news/security/sophos-warns-of-new-firewall-rce-bug-exploited-in-attacks/
- advisoryVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Firewall (Sophos) versions >= unspecified. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 16, 2022.
Yes. It was added on Sep 23, 2022 with a federal remediation due date of Oct 14, 2022.
Public exploit code is available.
Fixed versions are available, including Firewall <=19.0.1, Firewall 19.0.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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