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CVE-2026-76784 is an insufficient cryptographic-protection vulnerability in the local device communication protocol used by multiple TP-Link Kasa smart-home devices. The protocol does not adequately protect the integrity and authenticity of local control messages, allowing an adjacent-network attacker to intercept messages, replay valid commands, or forge new control commands. The issue affects Kasa smart plugs, switches, lighting devices, and other listed products using vulnerable firmware.
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No public exploit code observed for this vulnerability.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity adjacent-network vulnerability in TP-Link Kasa smart-home devices' local communication protocol. Inadequate cryptographic integrity and authenticity protections permit unauthenticated attackers on the same local network or wireless environment to capture, replay, or forge control commands, enabling unauthorized device-state changes and denial of service.
A CVSSv4 8.7 high-severity insufficient-cryptographic-protection flaw in the local communication protocol of multiple TP-Link Kasa smart-home devices. An attacker on the adjacent/local network could intercept, replay, or forge device-control messages, causing unauthorized state changes, disruption, or denial of service.
An insufficient cryptographic protection vulnerability in the local communication protocol of multiple TP-Link Kasa smart-home devices. An adjacent-network attacker can intercept, replay, or forge device-control messages, enabling unauthorized state changes, disruption, or denial of service.
An adjacent-network vulnerability caused by insufficient cryptographic protection in TP-Link Kasa smart-home devices' local communication protocol. It may enable interception, replay, or forgery of control messages, leading to unauthorized device control, state manipulation, disruption, or denial of service.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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