{"cve":"CVE-2021-33596","nvd":{"published":"2021-08-05T20:15:09.140","modified":"2026-06-17T03:54:50.903","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","score":4.1},"cwes":["CWE-1021"],"references":["https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame","https://www.f-secure.com/en/business/support-and-downloads/security-advisories","https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596","https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame","https://www.f-secure.com/en/business/support-and-downloads/security-advisories"],"products":["f-secure:safe"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-33596","score":0.00797,"percentile":0.56511,"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."]}