CVE-2026-32603: Sandboxie · Improper Input Validation
Affects SandboxieSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 1.17.3 soon.
Data as of 2 Nov 2026, 10:58 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.17.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:HExploitation evidence
Disclosed: evidence found.
CVE published 5 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade Sandboxie and sandboxie-plus/Sandboxie to 1.17.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| sandboxie-plusSandboxie | Affected
| Fixed in
|
GitHubsandboxie-plus/Sandboxiepkg:github/sandboxie-plus/SandboxieOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Sandboxie to version 1.17.3 or later where the vulnerability is fixed. For users unable to update immediately, switching to the Security Hardened Sandbox configuration provides an effective workaround. No other mitigations are specified.
Description
Sandboxie versions 1.17.2 and earlier contain a local denial of service vulnerability in the kernel driver. An unprivileged process inside a Standard Sandbox can send a malformed IOCTL to the SandboxieDriverApi device, causing a kernel crash (BSOD). This affects the Standard Sandbox configuration regardless of administrator privilege dropping, but not the Security Hardened Sandbox configuration. The issue is fixed in version 1.17.3. Users unable to update can mitigate by using the Security Hardened Sandbox configuration.