{"id":"CVE-2021-42201","aliases":["EUVD-2021-29183","GHSA-xjpp-q586-9whh","UBUNTU-CVE-2021-42201"],"status":"published","title":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the...","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0119,"percentile":0.68169,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-05-31T18:16:53Z","modified":"2026-06-17T04:09:28Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"swftools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.2+git20130725-2","0.9.2+git20130725-2ubuntu1","0.9.2+git20130725-4","0.9.2+git20130725-4.1~build0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"swftools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.2+git20130725-4.1"]}],"products":[{"vendor":"swftools","product":"swftools"}],"references":[{"url":"https://github.com/matthiaskramm/swftools/issues/175","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42201"},{"url":"https://github.com/advisories/GHSA-xjpp-q586-9whh"},{"url":"https://ubuntu.com/security/CVE-2021-42201","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-42201","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-42201","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","status":"published","published":"2022-05-31T18:16:53Z","modified":"2024-08-04T03:30:38.054Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29183","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","status":"published","published":"2022-05-31T18:16:53Z","modified":"2024-08-04T03:30:38Z","updated_at":"2026-11-03T03:24:16.217613Z"}],"ghsa":[{"id":"GHSA-xjpp-q586-9whh","title":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the...","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","status":"published","published":"2022-06-03T00:00:59Z","modified":"2023-01-27T05:03:25Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:42:14.754174Z"}],"nvd":[{"id":"CVE-2021-42201","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","status":"published","published":"2022-06-02T14:15:29.987Z","modified":"2026-06-17T04:09:28.127Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:06.501652Z"}],"osv":[{"id":"UBUNTU-CVE-2021-42201","description":"An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function swf_GetD64() located in rfxswf.c. It allows an attacker to cause code execution.","status":"published","published":"2022-06-02T14:15:00Z","modified":"2025-10-24T04:50:35Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:29.220315Z"}]}}