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CVE-2023-3595 is a vulnerability in select Rockwell Automation 1756-EN2 and 1756-EN3 ControlLogix EtherNet/IP communication modules. The flaw resides in the devices’ Common Industrial Protocol implementation and can be triggered through maliciously crafted CIP messages. Successful exploitation can enable unauthenticated remote code execution with persistence on the affected communication module. Available reporting also indicates the vulnerability permits arbitrary manipulation of firmware memory, which can undermine the trustworthiness of the module and affect data transiting the device.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in Rockwell ControlLogix 1756 EN2 and EN3 communication modules that could allow unauthenticated arbitrary code execution and persistent access via crafted CIP messages.
A remote code execution vulnerability with persistence in Rockwell Automation ControlLogix EtherNet/IP communication modules 1756-EN2* and 1756-EN3*, caused by flaws in the devices’ Common Industrial Protocol implementation and enabling arbitrary firmware memory manipulation.
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.