{"id":"CVE-2021-33806","aliases":["EUVD-2021-20483","GHSA-8ww6-p355-pvjq"],"status":"published","title":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it...","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","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":"2026-11-10","score":0.02981,"percentile":0.87397,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2021-06-03T11:22:05Z","modified":"2026-10-20T10:53:48Z","products":[{"vendor":"bdew","product":"bdlib"}],"references":[{"url":"https://bdew.net","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://www.curseforge.com/minecraft/mc-mods/bdlib/files/3331330","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","advisory"]},{"url":"https://vuln.ryotak.me/advisories/46","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/bdew-minecraft/bdlib/commit/447210530ceec72fb3374efecb0930ed359d2297","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33806"},{"url":"https://github.com/advisories/GHSA-8ww6-p355-pvjq"}],"sources":{"cve":[{"id":"CVE-2021-33806","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","status":"published","published":"2021-06-03T11:22:05Z","modified":"2024-08-03T23:58:23.171Z","updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20483","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","status":"published","published":"2021-06-03T11:22:05Z","modified":"2024-08-03T23:58:23Z","updated_at":"2026-11-03T03:24:33.318275Z"}],"ghsa":[{"id":"GHSA-8ww6-p355-pvjq","title":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it...","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","status":"published","published":"2022-05-24T19:03:58Z","modified":"2023-01-29T05:06:53Z","cwes":["CWE-502"],"updated_at":"2026-11-02T14:46:06.857512Z"}],"nvd":[{"id":"CVE-2021-33806","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","status":"published","published":"2021-06-03T12:15:07.797Z","modified":"2026-06-17T03:55:15.467Z","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"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-33806","description":"The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.","status":"published","published":"2021-06-03T12:15:07.797Z","modified":"2026-10-20T10:53:48.267056876Z","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"}],"updated_at":"2026-11-02T15:44:20.13324Z"}]}}