{"id":"CVE-2021-44747","aliases":["EUVD-2021-31562","GHSA-pcr7-vhw2-6q28"],"status":"published","title":"Denial-of-Service (DoS) Vulnerability","description":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered 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:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00634,"percentile":0.50745,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2022-03-01T11:55:26Z","modified":"2026-06-17T04:12:48Z","products":[{"vendor":"f-secure","product":"atlant"},{"vendor":"f-secure","product":"elements_endpoint_protection"},{"vendor":"f-secure","product":"f-secure endpoint protection products on mac, f-secure linux security (32-bit), f-secure linux security 64, f-secure atlant, f-secure internet gatekeeper \u0026 f-secure security cloud"},{"vendor":"f-secure","product":"internet_gatekeeper"},{"vendor":"f-secure","product":"linux_security"},{"vendor":"f-secure","product":"security_cloud"}],"references":[{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44747"},{"url":"https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-44747"},{"url":"https://github.com/advisories/GHSA-pcr7-vhw2-6q28"}],"sources":{"cve":[{"id":"CVE-2021-44747","title":"Denial-of-Service (DoS) Vulnerability","description":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2022-03-01T11:55:26Z","modified":"2024-08-04T04:32:13.027Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2021-31562","description":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2022-03-01T11:55:26Z","modified":"2024-08-04T04:32:13Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T03:08:28.560815Z"}],"ghsa":[{"id":"GHSA-pcr7-vhw2-6q28","title":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the...","description":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2022-03-02T00:00:19Z","modified":"2023-02-03T05:06:27Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:53:54.29937Z"}],"nvd":[{"id":"CVE-2021-44747","description":"A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.","status":"published","published":"2022-03-01T12:15:07.493Z","modified":"2026-06-17T04:12:48.95Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/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"}],"updated_at":"2026-11-02T14:07:05.198719Z"}]}}