CVE-2026-116099

2.1 low SSVC exploitation: poc Analyzed

A flaw has been found in Fusion Creators Studio SCP Containment Breach Multiplayer up to 1.295. This issue affects the function BlitzBanks of the component Skynet++ Virtual Machine. Executing a manipulation can lead to out-of-bounds write. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3R is capable of addressing this issue. It is recommended to upgrade the affected component.

Fix

Patch, vendor advisory and mitigation references on NVD 1

https://steamdb.info/patchnotes/25701366/ Patch

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 9

2026-10-28 18:17Cpes+1 CPE criteria (now 1)NVD modified 2026-10-28 18:14
2026-10-28 18:17StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-28 18:14
2026-10-28 16:15StatusDeferred → Undergoing AnalysisNVD modified 2026-10-28 16:14
2026-10-26 14:29StatusPublished → DeferredNVD modified 2026-10-26 13:41
2026-10-26 08:08StatusReceived → PublishedNVD modified 2026-10-26 06:11
2026-10-26 01:16Cpes-1 CPE criteria (now 0)NVD modified 2026-10-26 00:17
2026-10-26 01:16StatusPublished → ReceivedNVD modified 2026-10-26 00:17
2026-10-26 01:16CVSS5.3 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) → 2.1 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-26 00:17
2026-10-26 01:01First seenCVSS 5.3 · fusion creators studioNVD modified 2026-10-25 23:45

Affected (CPE criteria) 1

cpe:2.3:a:fcs-ex:scp\:containment_breach_multiplayer:*:*:*:*:*:steam:*:*

References 8

https://drbloop.dev/blog/one-click-remote-code-execution-in-scp-containment-breach-mutiplayer Exploit, Issue Tracking, Third Party Advisory
https://github.com/drbloop2000/SCP-CBM-RCE/tree/main Exploit, Issue Tracking
https://steamdb.info/patchnotes/25701366/ Patch
https://store.steampowered.com/news/app/1782380/view/670629296167978253 Issue Tracking
https://vuldb.com/cve/CVE-2026-116099 Third Party Advisory, VDB Entry
https://vuldb.com/submit/1001276 Third Party Advisory, VDB Entry
https://vuldb.com/vuln/426167 Third Party Advisory, VDB Entry
https://vuldb.com/vuln/426167/cti Third Party Advisory, VDB Entry