{"id":"CVE-2020-8437","aliases":["EUVD-2020-29304","GHSA-f77w-22mg-cg9g"],"status":"published","title":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded...","description":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.12042,"percentile":0.96166,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20","CWE-476"],"published":"2020-03-02T18:33:37Z","modified":"2026-06-17T03:26:22Z","exploits":[{"source":"pocgithub","id":"mavlevin/uTorrent-CVE-2020-8437","title":"mavlevin/uTorrent-CVE-2020-8437","date":"2020-09-18","url":"https://github.com/mavlevin/uTorrent-CVE-2020-8437"}],"products":[{"vendor":"bittorrent","product":"utorrent"}],"references":[{"url":"https://forum.utorrent.com/forum/13-announcements/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://twitter.com/va_start","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://utclient.utorrent.com/offers/beta_release_notes/release_notes.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8437"},{"url":"https://github.com/advisories/GHSA-f77w-22mg-cg9g"}],"sources":{"cve":[{"id":"CVE-2020-8437","description":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.","status":"published","published":"2020-03-02T18:33:37Z","modified":"2024-08-04T09:56:28.36Z","updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29304","description":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.","status":"published","published":"2020-03-02T18:33:37Z","modified":"2024-08-04T09:56:28Z","updated_at":"2026-11-03T03:07:57.599144Z"}],"ghsa":[{"id":"GHSA-f77w-22mg-cg9g","title":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded...","description":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.","status":"published","published":"2022-05-24T17:10:02Z","modified":"2023-01-29T05:01:38Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-476"],"updated_at":"2026-11-02T14:44:52.661438Z"}],"nvd":[{"id":"CVE-2020-8437","description":"The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.","status":"published","published":"2020-03-02T19:15:12.757Z","modified":"2026-06-17T03:26:22.833Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:05:54.796125Z"}]}}