{"id":"CVE-2021-33594","aliases":["EUVD-2021-20278","GHSA-w9rw-g2g4-x27x"],"status":"published","title":"F-Secure Safe browser for Android vulnerable to Address Bar Spoofing","description":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01075,"percentile":0.65442,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-08-11T10:28:33Z","modified":"2026-06-17T03:54:50Z","products":[{"vendor":"f-secure","product":"f-secure mobile security"},{"vendor":"f-secure","product":"safe"}],"references":[{"url":"https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33594","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33594"},{"url":"https://github.com/advisories/GHSA-w9rw-g2g4-x27x"}],"sources":{"cve":[{"id":"CVE-2021-33594","title":"F-Secure Safe browser for Android vulnerable to Address Bar Spoofing","description":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.","status":"published","published":"2021-08-11T10:28:33Z","modified":"2024-08-03T23:50:43.211Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20278","description":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.","status":"published","published":"2021-08-11T10:28:33Z","modified":"2024-08-03T23:50:43Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T03:24:33.866739Z"}],"ghsa":[{"id":"GHSA-w9rw-g2g4-x27x","title":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user...","description":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.","status":"published","published":"2022-05-24T19:10:45Z","modified":"2023-01-30T05:01:31Z","updated_at":"2026-11-02T14:46:25.569206Z"}],"nvd":[{"id":"CVE-2021-33594","description":"An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.","status":"published","published":"2021-08-11T11:15:09.067Z","modified":"2026-06-17T03:54:50.67Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:56.943671Z"}]}}