CVE-2026-95699 (GCVE-0-2026-95699)

Vulnerability from cvelistv5 – Published: 2026-09-24 20:39 – Updated: 2026-09-25 16:16
VLAI
Title
MrSteam iSteamX Improper Isolation or Compartmentalization
Summary
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.
Severity
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:H
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 16:16 UTC
CWE
  • CWE-653 - Improper isolation or compartmentalization
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 349 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MrSteam iSteamX application Affected: v1.3.42 (build 44)
guessed Create a notification for this product.
MrSteam iSteamX Hub Affected: v4.2.1
guessed Create a notification for this product.
Date Public
2026-09-24 16:17
Credits
Darren Challis
Show details on NVD website
To clipboard 

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