Report: CVE-2026-34461 - Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overflow allows local priv

Report: CVE-2026-34461 - Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overflow allows local priv

CVE ID :CVE-2026-34461 Published : May 5, 2026, 7:28 p.m. | 57 minutes ago Description :Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, the SbieIniServer RunSbieCtrl handler contains a stack buffer overflow. The MSGID_SBIE_INI_RUN_SBIE_CTRL message is handled before normal sandbox and impersonation checks, and for non-sandboxed callers, the handler copies the trailing message payload into a fixed-size WCHAR ctrlCmd[128] stack buffer using memcpy without verifying the length fits within the buffer. The service pipe is created with a NULL DACL, allowing any local interactive process to connect and send an oversized payload to overflow the stack. This can lead to a crash of the SbieSvc service or potential code execution as SYSTEM. This issue has been fixed in version 1.17.3. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
May 5, 2026
Affected Product: Windows
Attack Vector: local
Impact: code execution