{"id":"CVE-2021-39525","aliases":["EUVD-2021-25882","GHSA-58qh-2fp2-v597"],"status":"published","title":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap...","description":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap-based buffer overflow.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01065,"percentile":0.6516,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-09-20T15:28:33Z","modified":"2026-06-17T04:03:45Z","products":[{"vendor":"gnu","product":"libredwg"}],"references":[{"url":"https://github.com/LibreDWG/libredwg/issues/261","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39525"},{"url":"https://github.com/advisories/GHSA-58qh-2fp2-v597"}],"sources":{"cve":[{"id":"CVE-2021-39525","description":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap-based buffer overflow.","status":"published","published":"2021-09-20T15:28:33Z","modified":"2024-08-04T02:06:42.469Z","updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25882","description":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap-based buffer overflow.","status":"published","published":"2021-09-20T15:28:33Z","modified":"2024-08-04T02:06:42Z","updated_at":"2026-11-03T03:24:23.166742Z"}],"ghsa":[{"id":"GHSA-58qh-2fp2-v597","title":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap...","description":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap-based buffer overflow.","status":"published","published":"2022-05-24T19:15:10Z","modified":"2023-01-30T05:02:17Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:36.123786Z"}],"nvd":[{"id":"CVE-2021-39525","description":"An issue was discovered in libredwg through v0.10.1.3751. bit_read_fixed() in bits.c has a heap-based buffer overflow.","status":"published","published":"2021-09-20T16:15:11.99Z","modified":"2026-06-17T04:03:45.56Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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":"2026-11-02T14:06:58.933037Z"}]}}