Security advisory

{
  "id": "baf5aa0b78eefcae382ceb3c1e6b7bc73a571e9777791e90b53248cd37844263",
  "url": "https://osv.dev/vulnerability/CVE-2021-37786",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-37786",
    "summary": "Certain Federal Office of Information Technology Systems and Telecommunication FOITT products are affected by improper handling of exceptional conditions. This affects COVID Certificate App IOS 2.2.0 and below affected, patch in progress and COVID Certificate Check App IOS 2.2.0 and below affected, patch in progress. A denial of service (physically proximate) could be caused by scanning a crafted QR code.",
    "evidence": "osv:CVE-2021-37786",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-37786",
      "aliases": [
        "CVE-2021-37786"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/admin-ch/covidcertificate-app-ios",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "34c0a1313a011ac2d254f3a48ba86dd810b68eb2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:bag:covid_certificate:*:*:*:*:*:iphone_os:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.2.0-210722.123.7-wallet",
            "v2.2.0-210722.123.7-verifier",
            "v2.1.0-210708.1517.9996-wallet",
            "v2.1.0-210708.1517.9996-verifier",
            "v2.0.0-210625.1721.9981-wallet",
            "v2.0.0-210625.1721.9981-verifier",
            "v1.2.0-210616.1501.9965-wallet",
            "v1.2.0-210616.1501.9965-verifier"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-37786.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:51.016268156Z",
      "provider": "osv",
      "references": [
        "https://github.com/admin-ch/CovidCertificate-App-iOS/issues/146"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-37786",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386272,
  "published_at": "2021-09-27T14:15:08.583+00:00"
}