{"cve":"CVE-2021-27189","nvd":{"published":"2021-02-23T00:15:12.613","modified":"2026-06-17T03:44:26.040","status":"Modified","description":"The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-295"],"references":["http://packetstormsecurity.com/files/161507/CIRA-Canadian-Shield-Man-In-The-Middle.html","http://seclists.org/fulldisclosure/2021/Feb/72","https://www.info-sec.ca/advisories/CIRA-Canadian-Shield.html","http://packetstormsecurity.com/files/161507/CIRA-Canadian-Shield-Man-In-The-Middle.html","http://seclists.org/fulldisclosure/2021/Feb/72"],"products":["cira:canadian_shield"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-27189","score":0.01046,"percentile":0.64197,"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."]}