CVE-2025-33198

// CVE-2025-33198 PoC - Resource Reuse in NVIDIA DGX Spark GB10 SROOT Firmware // Note: This is a conceptual PoC for educational purposes only #include <stdio.h> #include <pthread.h> #include <unistd.h> // Simulated SROOT firmware resource handle void* secure_resource = NULL; void* attacker_thread(void* arg) { // Wait for resource allocation sleep(1); // Attempt to access resource after release (TOCTOU) printf("[Attacker] Attempting to access released secure resource\n"); if (secure_resource != NULL) { // Read sensitive data from reused resource printf("[Attacker] Successfully accessed resource - Information Disclosure\n"); } return NULL; } void* legitimate_thread(void* arg) { // Allocate secure resource secure_resource = malloc(1024); printf("[Legitimate] Allocated secure resource at %p\n", secure_resource); // Simulate secure operations sleep(2); // Release resource (vulnerability trigger point) free(secure_resource); printf("[Legitimate] Released secure resource\n"); // Race condition window: resource not null yet sleep(1); // Reallocate without proper reinitialization secure_resource = malloc(1024); printf("[Legitimate] Reallocated resource without full reinit\n"); return NULL; } int main() { pthread_t t1, t2; printf("CVE-2025-33198 PoC - NVIDIA DGX Spark GB10 SROOT Resource Reuse\n"); printf("Target: NVIDIA DGX Spark GB10 with vulnerable SROOT firmware\n\n"); // Create race condition pthread_create(&t1, NULL, legitimate_thread, NULL); pthread_create(&t2, NULL, attacker_thread, NULL); pthread_join(t1, NULL); pthread_join(t2, NULL); printf("\n[!] This PoC demonstrates the race condition principle.\n"); printf("[!] Actual exploitation requires physical/local access to DGX Spark.\n"); return 0; }

{"cve": {"id": "CVE-2025-33198", "sourceIdentifier": "[email protected]", "published": "2025-11-25T18:15:51.733", "lastModified": "2025-12-02T17:29:36.193", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA DGX Spark GB10 contains a vulnerability in SROOT firmware, where an attacker could cause a resource to be reused. A successful exploit of this vulnerability might lead to information disclosure."}, {"lang": "es", "value": "NVIDIA DGX Spark GB10 contiene una vulnerabilidad en el firmware SROOT, donde un atacante podría causar la reutilización de un recurso. Un exploit exitoso de esta vulnerabilidad podría llevar a la revelación de información."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-226"}]}], "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-2025-33198", "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-2025-33198", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}