{"id":"CVE-2021-33599","aliases":["EUVD-2021-20283","GHSA-6f5f-78pr-p7q9"],"status":"published","title":"Denial-of-Service (DoS) Vulnerability","description":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00415,"percentile":0.36232,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-835"],"published":"2021-09-07T12:12:28Z","modified":"2026-06-17T03:54:51Z","products":[{"vendor":"f-secure","product":"atlant"},{"vendor":"f-secure","product":"cloud_protection_for_salesforce"},{"vendor":"f-secure","product":"elements_endpoint_protection"},{"vendor":"f-secure","product":"f-secure endpoint protection products on windows and mac. f-secure linux security (32-bit)  f-secure linux security 64  f-secure atlant  f-secure cloud protection for salesforce"},{"vendor":"f-secure","product":"linux_security"}],"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/cve-2021-33599","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33599"},{"url":"https://github.com/advisories/GHSA-6f5f-78pr-p7q9"}],"sources":{"cve":[{"id":"CVE-2021-33599","title":"Denial-of-Service (DoS) Vulnerability","description":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2021-09-07T12:12:28Z","modified":"2024-08-03T23:50:43.167Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20283","description":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2021-09-07T12:12:28Z","modified":"2024-08-03T23:50:43Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T03:24:33.866739Z"}],"ghsa":[{"id":"GHSA-6f5f-78pr-p7q9","title":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive...","description":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2022-05-24T19:13:14Z","modified":"2023-01-30T05:01:52Z","cwes":["CWE-835"],"updated_at":"2026-11-02T14:46:30.304291Z"}],"nvd":[{"id":"CVE-2021-33599","description":"A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2021-09-07T13:15:07.403Z","modified":"2026-06-17T03:54:51.267Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}