CVE-2026-95699
MrSteam iSteamX Improper Isolation or Compartmentalization
MrSteam iSteamX application
CVSS
8.4HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.30%Chance of exploitation activity in the next 30 days, higher than 21% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
What fixes it
No source in this snapshot names a fixed version.
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.
Text from CVE List
Affected versions 2
- iSteamX applicationaffected: v1.3.42 (build 44)CVE List
- iSteamX Hubaffected: v4.2.1CVE List