{"cve":"CVE-2021-37786","nvd":{"published":"2021-09-27T14:15:08.583","modified":"2026-06-17T04:01:08.890","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":4.6},"cwes":["CWE-755"],"references":["https://github.com/admin-ch/CovidCertificate-App-iOS/issues/146","https://github.com/admin-ch/CovidCertificate-App-iOS/issues/146"],"products":["bag:covid_certificate"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-37786","score":0.00195,"percentile":0.09283,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}