CVE-2015-4640: The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies o...

Security readout for executives and security teams

Some Samsung Galaxy phones updated SwiftKey language packs over plain HTTP. A nearby or network-positioned attacker could alter that traffic and change language-pack files. Public sources describe this as chainable with CVE-2015-4641 for code execution as a system user, so legacy affected phones should be treated as a serious endpoint risk. Exposure is most likely on legacy Samsung Galaxy S4, S4 Mini, S5, and S6 devices using the affected keyboard update path, especially when connected through untrusted Wi-Fi, hostile local networks, or networks where traffic interception is possible. Prioritize replacement or isolation of affected legacy devices. The business risk is concentrated in older phones, but the potential impact is serious because researchers reported a path to system-level code execution when chained with the related vulnerability. Mitigation focus: Inventory Samsung Galaxy S4, S4 Mini, S5, and S6 devices.; Check Samsung and carrier guidance for official firmware updates.; Retire or isolate unsupported affected phones from enterprise use..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.