{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Sandboxie",
          "vendor": "sandboxie-plus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.17.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Sandboxie-Plus is an open source sandbox-based isolation software for Windows. Prior to 1.17.6, GuiServer::WndHookRegisterSlave in Sandboxie/core/svc/GuiServer.cpp stores attacker-supplied hthread and hproc fields from a GUI_WND_HOOK_REGISTER request without validating that the thread belongs to the sandboxed process or that the function pointer is in the caller address space, and GuiServer::WndHookNotifySlave then calls OpenThread(THREAD_SET_CONTEXT, FALSE, whk-\u003ehthread) and QueueUserAPC((PAPCFUNC)whk-\u003ehproc, hThread, (ULONG_PTR)req-\u003ethreadid) as SYSTEM, allowing a sandboxed process to execute arbitrary code in an unsandboxed host process. This issue is fixed in version 1.17.6."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-15T21:21:23.091Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-rmv3-fhg3-75xh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-rmv3-fhg3-75xh"
        },
        {
          "name": "https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.17.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.17.6"
        }
      ],
      "source": {
        "advisory": "GHSA-rmv3-fhg3-75xh",
        "discovery": "UNKNOWN"
      },
      "title": "Sandboxie-Plus: Sandboxie APC Injection Sandbox Escape"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45313",
    "datePublished": "2026-07-15T21:21:23.091Z",
    "dateReserved": "2026-05-11T20:50:30.538Z",
    "dateUpdated": "2026-07-15T21:21:23.091Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45313",
      "date": "2026-06-14",
      "epss": "0.00014",
      "percentile": "0.02842"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-45313\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-15T22:16:48.873\",\"lastModified\":\"2026-07-15T22:16:48.873\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Sandboxie-Plus is an open source sandbox-based isolation software for Windows. Prior to 1.17.6, GuiServer::WndHookRegisterSlave in Sandboxie/core/svc/GuiServer.cpp stores attacker-supplied hthread and hproc fields from a GUI_WND_HOOK_REGISTER request without validating that the thread belongs to the sandboxed process or that the function pointer is in the caller address space, and GuiServer::WndHookNotifySlave then calls OpenThread(THREAD_SET_CONTEXT, FALSE, whk-\u003ehthread) and QueueUserAPC((PAPCFUNC)whk-\u003ehproc, hThread, (ULONG_PTR)req-\u003ethreadid) as SYSTEM, allowing a sandboxed process to execute arbitrary code in an unsandboxed host process. This issue is fixed in version 1.17.6.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"sandboxie-plus\",\"product\":\"Sandboxie\",\"versions\":[{\"version\":\"\u003c 1.17.6\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]}],\"references\":[{\"url\":\"https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.17.6\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-rmv3-fhg3-75xh\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}