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Fencer Vulns
critical 9.8

CVE-2022-3236 kev in the critical feed json

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

published 2022-09-23 4 y ago modified 2026-10-07 32 d ago also EUVD-2022-42644

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2022-09-23
epss
98.9%
EPSS 98.9% chance of exploitation in 30 days, percentile 99.9%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. Found exploited as a 0-day (Project Zero)
  2. 0-day patched (Project Zero)
  3. Added to CISA KEV
  4. Published
  5. CISA patch deadline
  6. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-10-14 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Sophos, Firewall
CISA name
Sophos Firewall Code Injection Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Found
2022-09-16
Patched
2022-09-23
Details
project zero tracker

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

98.91% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Sophos Firewall <= 19.0 MR1 - Remote Code Execution nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Sophos Sophos Firewall

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.