CVE-2026-34462
- Source
- https://cve.org/CVERecord?id=CVE-2026-34462
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34462.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-34462
- Aliases
-
- GHSA-9cjg-vh9m-hhx4
- Published
- 2026-05-05T19:30:37.189Z
- Modified
- 2026-07-08T08:12:50.257976276Z
- Severity
-
- 7.3 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Sandboxie-Plus ProcessServer boxname stack buffer overflows via unterminated wide string copy
- Details
-
Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, several ProcessServer handlers (KillAllHandler, SuspendAllHandler, and RunSandboxedHandler) copy a WCHAR boxname[34] field from request structures into WCHAR[40] stack buffers using wcscpy without verifying null termination. Because the service pipe accepts variable-length packets larger than the request structure, an attacker can fill the boxname field with non-zero data and append additional controlled wide characters after the structure. wcscpy then reads past the fixed field and overflows the destination stack buffer. The service pipe is created with a NULL DACL, allowing any local process to connect, and the unsafe copy occurs before authorization checks. 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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-121", "CWE-170" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34462.json" }- References
Affected packages
Git / github.com/sandboxie-plus/sandboxie
Affected ranges
- Type
- GIT
- Repo
- https://github.com/sandboxie-plus/sandboxie
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.17.3" } ], "cpe": "cpe:2.3:a:sandboxie-plus:sandboxie:*:*:*:*:plus:*:*:*", "source": [ "AFFECTED_FIELD", "CPE_RANGE" ] }