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CVE-2026-43842 is a NULL pointer dereference vulnerability in the license manager service of Advantech ADAM-3600 EdgeLink versions prior to 2.8.5.0. Processing a message with msglen set to 0 in the rpc_rx_fsm function can trigger a NULL pointer dereference, allowing an unauthenticated attacker to crash the service.
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No public exploit code observed for this vulnerability.
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A NULL pointer dereference in a license manager service allows an unauthenticated attacker to crash the service through rpc_rx_fsm when msglen is zero, causing denial of service. The content does not identify the vendor, product name, or affected versions.
NULL pointer dereference in the license manager's rpc_rx_fsm function, triggered when msglen is zero, allows unauthenticated service crashes. Reported severity: 6.9 (Medium).
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Cross-references every affected SKU, including bundled OEM variants.
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