ALPC You Later: CVE-2025-64721 Sandbox Escape Smashing The Heap Over IPC
depthfirst.com | vulnerability | Critical | CVE-2025-64721 | #rce | #vulnerability-research | #windows-security | #sandbox-escape | #heap-overflow | #alpc | #sandboxie | #cve-2025-64721
Summary
Analysis of CVE-2025-64721, a Sandboxie sandbox escape: a missing bounds check in raw ALPC IPC allowed heap leakage and a 4GB heap smash, leading to SYSTEM-level code execution on Windows.
- CVE
- CVE-2025-64721
- CVSS
- 10
- Published
- Collected
--- id: 5440 title: "ALPC You Later: CVE-2025-64721 Sandbox Escape Smashing The Heap Over IPC" cve: CVE-2025-64721 cvss: 10 severity: critical source_domain: depthfirst.com source_url: "https://depthfirst.com/research/alpc-you-later-cve-2025-64721-sandbox-escape-smashing-the-heap-over-ipc" published_at: "2025-12-23T00:00:00Z" tags: ["rce", "vulnerability-research", "windows-security", "sandbox-escape", "heap-overflow", "alpc", "sandboxie", "cve-2025-64721"] phying_url: "https://phying.com/item/5440" lang: en --- # ALPC You Later: CVE-2025-64721 Sandbox Escape Smashing The Heap Over IPC ## Summary Analysis of CVE-2025-64721, a Sandboxie sandbox escape: a missing bounds check in raw ALPC IPC allowed heap leakage and a 4GB heap smash, leading to SYSTEM-level code execution on Windows. ## Intelligence Metadata - **Sources:** depthfirst.com - **CVE:** CVE-2025-64721 - **CVSS:** 10 - **Published:** 2025-12-23T00:00:00Z - **Original:** https://depthfirst.com/research/alpc-you-later-cve-2025-64721-sandbox-escape-smashing-the-heap-over-ipc - **Phying News:** https://phying.com/item/5440