{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "bsitf.sys CVE-2026-13585",
          "vendor": "Asus",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Hayaturehman Ahmadzai"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Hi all,\n\nI\u0027m disclosing a vulnerability (CVE-2026-13585) in the ASUS bsitf.sys /\nAsusBSItf.sys kernel driver, shipped with ASUS Business Manager and\nSoftware Manager. ASUS has assigned the CVE and published a vendor advisory\nwith countermeasures.\n\nSummary: The driver exposes a device (\\\\.\\bsitf, admin-required to open)\nwith an IOCTL that allocates a caller-specified amount of physically\ncontiguous kernel memory, maps it into the calling process, and returns\nboth the user-space pointer and the physical address, with no validation on\nthe requested size, no cap on allocation count, and no input checking.\n\nObserved impact:\n\n- Pool-exhaustion denial of service: uncapped allocations in a loop exhaust\nNonPagedPool and BSOD the machine, reachable from any admin process.\n- Physical address disclosure on every allocation, useful as an info-leak\nprimitive or for DMA-oriented attacks.\n- On version 3.0.10.0 the pool type is executable (NonPagedPool), enabling\nshellcode staging at a known kernel address (still requires a separate\ncontrol-flow bug). Later 3.1.x versions use NonPagedPoolNx, so this does\nnot apply there.\n\nAffected versions tested: 3.0.10.0 (bsitf.sys), 3.1.10.0 and 3.1.25.0\n(AsusBSItf.sys). All exhibit the same flaw.\n\nTimeline:\n- 2026-04-06: Discovered, PoC confirmed on Windows 11 24H2, reported to\nASUS PSIRT\n- 2026-07-14: CVE assigned and case closed (CVE-2026-13585)\n- 2026-07-15: Vendor advisory and countermeasures released\n\nFull technical writeup and PoC: https://blog.ahmadz.ai/asus_bsitf_0_day_poc/\n\nRegards,\n\nRehman Ahmadzai\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T11:36:22Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
      },
      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://vuln.freearchive.org/archive/full-disclosure/2026/Jul/26"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Jul/26"
        },
        {
          "url": "https://blog.ahmadz.ai/asus_bsitf_0_day_poc/"
        },
        {
          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
        },
        {
          "url": "https://seclists.org/fulldisclosure/"
        }
      ],
      "source": {
        "defect": [
          "https://seclists.org/fulldisclosure/2026/Jul/26"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "ASUS bsitf.sys (CVE-2026-13585): Arbitrary Physical Memory Mapping in ASUS Business/Software Manager kernel driver",
      "x_gcve": [
        {
          "recordType": "advisory",
          "relationships": [],
          "vulnId": "GCVE-1988-2026-0102",
          "x_vulnarchive": {
            "archiveUrl": "https://vuln.freearchive.org/archive/full-disclosure/2026/Jul/26",
            "automated": true,
            "contentSha256": "b4c5a9fd17e80b57571c3b7453eaf270fb7083679b5e452617a5ee20cce5c181",
            "evidenceScore": 7,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Jul/26",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-07-16T06:51:53Z"
          }
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-07T13:20:22Z",
    "dateUpdated": "2026-09-11T11:36:22Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0102"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}