{"id":"CVE-2020-8961","aliases":["EUVD-2020-29791","GHSA-6h67-xpj8-pjh2"],"status":"published","title":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection...","description":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02048,"percentile":0.81358,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2020-04-09T19:54:59Z","modified":"2026-06-17T03:27:16Z","products":[{"vendor":"avira","product":"free_antivirus"}],"references":[{"url":"https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8961"},{"url":"https://github.com/advisories/GHSA-6h67-xpj8-pjh2"}],"sources":{"cve":[{"id":"CVE-2020-8961","description":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.","status":"published","published":"2020-04-09T19:54:59Z","modified":"2024-08-04T10:19:19.418Z","updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29791","description":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.","status":"published","published":"2020-04-09T19:54:59Z","modified":"2024-08-04T10:19:19Z","updated_at":"2026-11-03T03:07:55.71159Z"}],"ghsa":[{"id":"GHSA-6h67-xpj8-pjh2","title":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection...","description":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.","status":"published","published":"2022-05-24T17:13:58Z","modified":"2023-01-29T05:02:09Z","cwes":["CWE-94"],"updated_at":"2026-11-02T14:45:00.532867Z"}],"nvd":[{"id":"CVE-2020-8961","description":"An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.","status":"published","published":"2020-04-09T20:15:12.403Z","modified":"2026-06-17T03:27:16.167Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:57.678762Z"}]}}