{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-70331 Microsoft Edge for iOS Spoofing Vulnerability - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-70331.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Microsoft Edge for iOS Spoofing Vulnerability",
    "tracking": {
      "current_release_date": "2026-08-28T07:00:00.000Z",
      "generator": {
        "date": "2026-09-25T19:35:13.866Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-70331",
      "initial_release_date": "2026-08-28T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-08-28T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<150.0.4078.50",
                "product": {
                  "name": "Microsoft Edge (Chromium-based) <150.0.4078.50",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "150.0.4078.50",
                "product": {
                  "name": "Microsoft Edge (Chromium-based) 150.0.4078.50",
                  "product_id": "11655"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Edge (Chromium-based)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<150.0.4078.50",
                "product": {
                  "name": "Microsoft Edge for iOS <150.0.4078.50",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "150.0.4078.50",
                "product": {
                  "name": "Microsoft Edge for iOS 150.0.4078.50",
                  "product_id": "11966"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Edge for iOS"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-70331",
      "cwe": {
        "id": "CWE-1427",
        "name": "Improper Neutralization of Input Used for LLM Prompting"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "11655",
          "11966"
        ],
        "known_affected": [
          "2",
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-70331 Microsoft Edge for iOS Spoofing Vulnerability - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-70331.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-28T07:00:00.000Z",
          "details": "150.0.4078.50:Security Update:https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security",
          "product_ids": [
            "2",
            "1"
          ],
          "url": "https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 4.7,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "title": "Microsoft Edge for iOS Spoofing Vulnerability"
    }
  ]
}