{"id":"CVE-2021-45950","aliases":["EUVD-2021-32657","GHSA-x4cp-hqhf-j5rh"],"status":"published","title":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private ...","description":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private (called from dwg_free_BLOCK and dwg_free_object).","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00916,"percentile":0.60447,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-12-31T23:54:21Z","modified":"2026-06-17T04:14:18Z","products":[{"vendor":"gnu","product":"libredwg"}],"references":[{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-814.yaml","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34766","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45950"},{"url":"https://github.com/advisories/GHSA-x4cp-hqhf-j5rh"}],"sources":{"cve":[{"id":"CVE-2021-45950","description":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private (called from dwg_free_BLOCK and dwg_free_object).","status":"published","published":"2021-12-31T23:54:21Z","modified":"2024-08-04T04:54:31.225Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32657","description":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private (called from dwg_free_BLOCK and dwg_free_object).","status":"published","published":"2021-12-31T23:54:21Z","modified":"2024-08-04T04:54:31Z","updated_at":"2026-11-03T03:08:25.222984Z"}],"ghsa":[{"id":"GHSA-x4cp-hqhf-j5rh","title":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private ...","description":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private (called from dwg_free_BLOCK and dwg_free_object).","status":"published","published":"2022-01-02T00:01:00Z","modified":"2023-02-03T05:03:48Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:25.886002Z"}],"nvd":[{"id":"CVE-2021-45950","description":"LibreDWG 0.12.4.4313 through 0.12.4.4367 has an out-of-bounds write in dwg_free_BLOCK_private (called from dwg_free_BLOCK and dwg_free_object).","status":"published","published":"2022-01-01T00:15:08.46Z","modified":"2026-06-17T04:14:18.497Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:02.977492Z"}]}}