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Critical · 9.6 CVE-2026-95699 EUVD-2026-86468GHSA-pjrx-22r5-wchr

MrSteam iSteamX Improper Isolation or Compartmentalization

Published Sep 24, 2026 · Updated Sep 25, 2026 · Assigned by icscert

Description

Prior to 9/18/2026, the iSteamX mobile application's AWS policy could grant authenticated users access to wildcard MQTT topics, which can expose other users' device data and allow the attacker to start and stop other connected users' devices. This risked exposing user profile information and potential scalding due to unintended device activation.

Affected products

VendorProductAffectedFixed
MrSteam iSteamX application v1.3.42 (build 44) —
MrSteam iSteamX Hub v4.2.1 —

References