{"id":"CVE-2021-40837","aliases":["EUVD-2021-27994","GHSA-2whc-p527-687m"],"status":"published","title":"Denial-of-Service (DoS) Vulnerability","description":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus 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":"2026-11-12","score":0.00662,"percentile":0.52164,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-02-09T12:10:46Z","modified":"2026-06-17T04:07:30Z","products":[{"vendor":"f-secure","product":"atlant"},{"vendor":"f-secure","product":"elements_endpoint_detection_and_response"},{"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 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://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40837","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40837"},{"url":"https://github.com/advisories/GHSA-2whc-p527-687m"}],"sources":{"cve":[{"id":"CVE-2021-40837","title":"Denial-of-Service (DoS) Vulnerability","description":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.","status":"published","published":"2022-02-09T12:10:46Z","modified":"2024-08-04T02:51:07.508Z","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":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-27994","description":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.","status":"published","published":"2022-02-09T12:10:46Z","modified":"2024-08-04T02:51:07Z","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":"2026-11-03T03:24:19.692229Z"}],"ghsa":[{"id":"GHSA-2whc-p527-687m","title":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was...","description":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.","status":"published","published":"2022-02-10T00:00:32Z","modified":"2023-02-03T05:05:47Z","updated_at":"2026-11-02T14:53:47.833456Z"}],"nvd":[{"id":"CVE-2021-40837","description":"A vulnerability affecting F-Secure antivirus engine before Capricorn update 2022-02-01_01 was discovered whereby decompression of ACE file causes the scanner service to stop. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.","status":"published","published":"2022-02-09T13:15:08.527Z","modified":"2026-06-17T04:07:30.807Z","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":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}