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TI-2026-33112 Aliases CVE-2026-45313

Sandboxie-Plus: Sandboxie APC Injection Sandbox Escape

Priority HIGH 69CWE-284Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Sandboxie-Plus is an open source sandbox-based isolation software for Windows. Prior to 1.17.6, GuiServer::WndHookRegisterSlave in Sandboxie/core/svc/GuiServer.cpp stores attacker-supplied hthread and hproc fields from a GUI_WND_HOOK_REGISTER request without validating that the thread belongs to the sandboxed process or that the function pointer is in the caller address space, and GuiServer::WndHookNotifySlave then calls OpenThread(THREAD_SET_CONTEXT, FALSE, whk->hthread) and QueueUserAPC((PAPCFUNC)whk->hproc, hThread, (ULONG_PTR)req->threadid) as SYSTEM, allowing a sandboxed process to execute arbitrary code in an unsandboxed host process. This issue is fixed in version 1.17.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00152 4th percentileScored 2026-11-07
Fix Fixed Sandboxie (sandboxie-plus): 1.17.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
sandboxie-plusSandboxiebefore 1.17.61.17.6Patch availableCNA
  • Sandboxie Vendorsandboxie-plus Affected before 1.17.6 Fixed in 1.17.6 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:sandboxie-plus:sandboxie:*:*:*:*:*:*:*:*——sandboxie-plus
  • cpe:2.3:a:sandboxie-plus:sandboxie:*:*:*:*:*:*:*:* Versions — — ·sandboxie-plus

Remediation

  • Fix · CNA Sandboxie (sandboxie-plus) Fixed in 1.17.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-45313

References

Other 2

  • TI-2025-40067 Sandboxie's Integer Overflow in SbieIniServer::RC4Crypt allows sandbox escape and SYSTEM compromise CVSS 4.0CRITICAL 9.9
  • TI-2026-26723 Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly CVSS 4.0CRITICAL 9.3
  • TI-2024-32948 Path traversal in Sandboxie CVSS 3.1CRITICAL 9.2
  • TI-2026-26724 Sandboxie-Plus sandbox escape via uninitialized memory leak and stack overflow in GetRawInputDeviceInfoSlave CVSS 4.0HIGH 8.8
  • TI-2021-22497 Sandboxie Plus v0.7.2 - 'SbieSvc' Unquoted Service Path CVSS 4.0HIGH 8.5
  • TI-2026-25112 Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process CVSS 4.0HIGH 8.2
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences