{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2020-05-29"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2020-05-29"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f751a666697"
            }
          ],
          "repo": "https://github.com/google/exposure-notifications-internals",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f751a666697c3cae0a56ae3464c2c6cbe31b69e"
            }
          ],
          "repo": "https://github.com/google/exposure-notifications-internals",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f751a666697"
            }
          ],
          "repo": "https://github.com/google/exposure-notifications-internals",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f751a666697c3cae0a56ae3464c2c6cbe31b69e"
            }
          ],
          "repo": "https://github.com/google/exposure-notifications-internals",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The Rolling Proximity Identifier used in the Apple/Google Exposure Notification API beta through 2020-05-29 enables attackers to circumvent Bluetooth Smart Privacy because there is a secondary temporary UID. An attacker with access to Beacon or IoT networks can seamlessly track individual device movement via a Bluetooth LE discovery mechanism.",
  "id": "CVE-2020-13702",
  "modified": "2026-04-01T23:08:16.472351612Z",
  "published": "2020-06-11T19:15:10.073Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://blog.google/documents/70/Exposure_Notification_-_Bluetooth_Specification_v1.2.2.pdf"
    },
    {
      "type": "FIX",
      "url": "https://github.com/google/exposure-notifications-internals/commit/8f751a666697"
    },
    {
      "type": "FIX",
      "url": "https://github.com/google/exposure-notifications-internals/commit/8f751a666697c3cae0a56ae3464c2c6cbe31b69e"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200616-2.pdf"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200616.pdf"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200611.pdf"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}