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CVE-2025-14027 is a set of denial-of-service conditions affecting Rockwell Automation ControlLogix Redundancy Enhanced Modules, catalog numbers 1756-RM2 and 1756-RM2XT, across all firmware versions. The issues can be triggered remotely via crafted inputs, including malformed Class 3 messages, as well as memory leak conditions and other resource-exhaustion scenarios (CWE-401). Successful exploitation can cause the module/device to become unresponsive and, in some cases, enter a major nonrecoverable fault state; recovery may require a restart.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.