{"id":51532,"date":"2026-05-05T14:46:50","date_gmt":"2026-05-05T14:46:50","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=51532"},"modified":"2026-05-05T14:46:50","modified_gmt":"2026-05-05T14:46:50","slug":"sandboxie-kernel-driver-denial-of-service-via-malformed-ioctl-from-sandboxed-process","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=51532","title":{"rendered":"Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process_CVE-2026-32603"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Sandboxie is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, a local denial of service vulnerability exists in the Sandboxie kernel driver. An unprivileged process running inside a Standard Sandbox can send a malformed IOCTL to the \\\\Device\\\\SandboxieDriverApi driver, triggering an immediate kernel crash (BSOD). The vulnerability affects the Standard Sandbox configuration both with and without dropped administrator privileges, but does not affect the Security Hardened Sandbox configuration. This issue has been fixed in version 1.17.3. 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In versions 1.17.2 and earlier, a local denial of service vulnerability exists in the Sandboxie&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,77,12,15,13,7,11,5],"class_list":["post-51532","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-82","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process_CVE-2026-32603 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=51532\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process_CVE-2026-32603 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Sandboxie is an open source sandbox-based isolation software for Windows. 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