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CVE-2022-3236 is a code injection vulnerability in the User Portal and Webadmin components of Sophos Firewall that allows remote code execution. The issue affects Sophos Firewall v19.0 MR1 (19.0.1) and older releases, including older end-of-life firmware that remained exposed after the initial 2022 fixes. The flaw is reachable over the network and does not require user interaction. Sophos reported in-the-wild exploitation beginning in 2022, with later exploit attempts against unsupported firmware observed in 2023. The vulnerability has been associated with compromise of internet-facing firewall appliances and subsequent deployment of multiple malware families and backdoors on affected devices.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in Sophos Firewall OS (SFOS) that was used as the initial access vector in the described attacks, enabling attackers to modify Java components and deploy multiple backdoors and malware.
A vulnerability in Sophos Firewall that the content states Salt Typhoon exploited for initial access via public-facing infrastructure.
A vulnerability in Sophos edge infrastructure appliances exploited by Chinese state-sponsored threat actors for persistent remote access and proxying attacks.
A code injection vulnerability in Sophos Firewall User Portal and Webadmin components that allows remote code execution without user interaction.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.