CVE-2022-3236
Published: September 23, 2022
Official Description
A code injection vulnerability in the User Portal and Webadmin of Sophos Firewall allows for remote code execution.
CISA KEV Advisory
Sophos Firewall Code Injection Vulnerability
A code injection vulnerability in the User Portal and Webadmin of Sophos Firewall allows for remote code execution.
Apply updates per vendor instructions.
Risk Analysis
A code injection vulnerability in the User Portal and Webadmin of Sophos Firewall allows for remote code execution. The very high EPSS score of 0.92403 indicates a strong probability of exploitation. This vulnerability is confirmed to be actively exploited, making it an urgent security concern.
This vulnerability is actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities catalog. The flaw allows for remote code execution.
Sophos Firewall administrators should immediately apply the latest security patches and updates. Restrict access to the User Portal and Webadmin interfaces to trusted networks and users.
Technical Analysis
CVE-2022-3236 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-3236 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-3236 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1