{"id":"CVE-2021-33596","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-33596","generatedAt":"2026-10-27T21:16:07.580Z","title":"Exploiting the vulnerability requires the user to click on a specially crafted, seemingly legitimate URL containing an embedded malicious redirect while using F-Secure Safe Browser for iOS.","description":"Showing the legitimate URL in the address bar while loading the content from other domain. This makes the user believe that the content is served by a legit domain. Exploiting the vulnerability requires the user to click on a specially crafted, seemingly legitimate URL containing an embedded malicious redirect while using F-Secure Safe Browser for iOS.","published":"2021-08-05T20:15:09.000Z","lastModified":"2026-06-17T03:54:51.000Z","status":"Modified","sourceIdentifier":"cve-notifications-us@f-secure.com","cvss":{"version":"3.1","score":4.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N"},"cwe":["CWE-1021"],"affected":["f-secure/safe"],"epss":{"score":0.00797,"percentile":0.56233,"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 (0.80%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame","tags":["Vendor Advisory"],"source":"cve-notifications-us@f-secure.com"},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories","tags":["Vendor Advisory"],"source":"cve-notifications-us@f-secure.com"},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596","tags":["Vendor Advisory"],"source":"cve-notifications-us@f-secure.com"},{"url":"https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-33596","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."}