Integer overflow in Sandboxie-plus Sandboxie
CVE-2025-64721
Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions 1.16.6 and below, the SYSTEM-level service SbieSvc.exe exposes SbieIniServer::RC4Crypt to sandboxed processes. The handle…
Vulnerability class: Integer Overflow
EPSS: 0.006 (46.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Sandboxie-plus Sandboxie — versions < 1.16.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-64721?
- CVE-2025-64721 is a critical-severity vulnerability in Sandboxie-plus Sandboxie, classified under Integer Overflow or Wraparound. CVSS score: 10.0/10. Published 2025-12-11.
- How severe is CVE-2025-64721?
- Critical severity. CVSS v3 base score is 10.0 out of 10.