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Vulnerabilities

Vulnerability · CVE-2026-32603

Sandboxie is an open source sandbox-based isolation software for Windows.

Published May 5, 2026 · catalog updated Jul 25, 2026 · Sandboxie is an open

Check if you run it

No confirmed exploitation is on record for CVE-2026-32603. EPSS is 0.16%. Act only if a listed version of Sandboxie is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Sandboxie is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Version ranges on file
Affected products
cpe sandboxie-plus/sandboxie · stated sandboxie

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe sandboxie-plus/sandboxieversion unspecified
  • stated sandboxie<= 1.17.2

How to fix CVE-2026-32603

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-32603. EPSS is 0.16%. Act only if a listed version of Sandboxie is an open is installed.

Which versions are affected?

Compare what you have installed with <= 1.17.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-20: Improper Input Validation. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 5, 2026 · NIST NVD

    Detected

    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 Sand

  2. Jul 25, 2026 · NIST NVD

    Updated

    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 Sand

Sources

  • CVE.orgVulnerability recordCVE-2026-32603

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-32603

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-32603

    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 \De

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.