{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-64721 exists.","fix":"No fix has been published for CVE-2025-64721 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-64721 is a critical vulnerability in sandboxie-plus Sandboxie, published on 11 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-64721 and fix it if it is affected.\n\nWhat it is: CVE-2025-64721 is a critical vulnerability in sandboxie-plus Sandboxie, published on 11 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-64721 exists.\n\nAffected product: sandboxie-plus Sandboxie. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-64721/ (Markdown: https://insights.sbomify.com/CVE-2025-64721/index.md)","id":"CVE-2025-64721","markdown":"https://insights.sbomify.com/CVE-2025-64721/index.md","name":"CVE-2025-64721","record":{"aliases":["GHSA-w476-j57g-96vp"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows sandbox software","requires_auth":"none","summary":"An integer overflow in Sandboxie allows sandboxed processes to escape isolation and execute arbitrary code with SYSTEM privileges on the host.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"sandboxie","vendor":"sandboxie-plus"}],"cvss":{"score":9.9,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"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 handler adds a fixed header size to a caller-controlled value_len without overflow checking. A large value_len (e.g., 0xFFFFFFF0) wraps the allocation size, causing a heap overflow when attacker data is copied into the undersized buffer. This allows sandboxed processes to execute arbitrary code as SYSTEM, fully compromising the host. This issue is fixed in version 1.16.7.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Sandboxie's Integer Overflow in SbieIniServer::RC4Crypt allows sandbox escape and SYSTEM compromise","id":"CVE-2025-64721","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"Arduino IDE for macOS has TCC Bypass via Dynamic Library Injection","id":"CVE-2025-64723"},"packages":[],"prev":{"headline":"LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication","id":"CVE-2025-64720"},"products":["Sandboxie"],"published":"2025-12-11","related":[{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2018-18748","kev_date_added":null,"published":"2018-10-28"},{"cvss_score":9.3,"headline":"Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly","id":"CVE-2026-34458","kev_date_added":null,"published":"2026-05-05"},{"cvss_score":9.2,"headline":"Path traversal in Sandboxie","id":"CVE-2024-49360","kev_date_added":null,"published":"2024-11-29"},{"cvss_score":8.8,"headline":"Sandboxie-Plus sandbox escape via uninitialized memory leak and stack overflow in GetRawInputDeviceInfoSlave","id":"CVE-2026-34459","kev_date_added":null,"published":"2026-05-05"},{"cvss_score":8.8,"headline":"Sandboxie-Plus NamedPipeServer OpenHandler stack overflow via unterminated server field","id":"CVE-2026-34464","kev_date_added":null,"published":"2026-05-05"},{"cvss_score":8.2,"headline":"Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process","id":"CVE-2026-32603","kev_date_added":null,"published":"2026-05-05"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-12-15","vendors":["sandboxie-plus"]},"summary":"An integer overflow in Sandboxie allows sandboxed processes to escape isolation and execute arbitrary code with SYSTEM privileges on the host.","url":"https://insights.sbomify.com/CVE-2025-64721/"}