CVE-2026-95699

8.4 highEPSS 0.3%

High (8.4). EPSS 0.3% chance of exploitation in the next 30 days.

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

CVSS 4.0

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

CVSS 3.1

9.6 critical

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-653
Published: 2026-09-24
Modified: 2026-09-25
Record from: the NVD, synced 2026-10-19

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-267-01.json
https://www.mrsteam.com/contactus/

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