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Description

Sandboxie is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, a local denial of service vulnerability exists in the Sandboxie kernel driver. An unprivileged process running inside a Standard Sandbox can send a malformed IOCTL to the \Device\SandboxieDriverApi driver, triggering an immediate kernel crash (BSOD). The vulnerability affects the Standard Sandbox configuration both with and without dropped administrator privileges, but does not affect the Security Hardened Sandbox configuration. This issue has been fixed in version 1.17.3. Users who cannot update can use the Security Hardened Sandbox configuration as a workaround.

PUBLISHED Reserved 2026-03-12 | Published 2026-05-05 | Updated 2026-05-06 | Assigner GitHub_M




HIGH: 8.2CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Problem types

CWE-20: Improper Input Validation

Product status

< 1.17.3
affected

References

github.com/...dboxie/security/advisories/GHSA-vvf8-cf4j-v8fv exploit

github.com/...dboxie/security/advisories/GHSA-vvf8-cf4j-v8fv

github.com/sandboxie-plus/Sandboxie/releases/tag/v1.17.3

cve.org (CVE-2026-32603)

nvd.nist.gov (CVE-2026-32603)

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