{"id":"CVE-2021-27189","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27189","generatedAt":"2026-10-27T22:28:46.837Z","title":"The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation.","description":"The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation.","published":"2021-02-23T00:15:13.000Z","lastModified":"2026-06-17T03:44:26.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-295"],"affected":["cira/canadian shield"],"epss":{"score":0.01046,"percentile":0.63951,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.05%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/161507/CIRA-Canadian-Shield-Man-In-The-Middle.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2021/Feb/72","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.info-sec.ca/advisories/CIRA-Canadian-Shield.html","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/161507/CIRA-Canadian-Shield-Man-In-The-Middle.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2021/Feb/72","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.info-sec.ca/advisories/CIRA-Canadian-Shield.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27189","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}