{"id":"CVE-2021-45935","aliases":["DEBIAN-CVE-2021-45935","EUVD-2021-32644","GHSA-xx3m-p5mx-cgw5"],"status":"published","title":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from...","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/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":0.00911,"percentile":0.60249,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2021-12-31T23:58:13Z","modified":"2026-10-23T18:04:17Z","fixes":[{"ecosystem":"Debian:12","package":"libgrokj2k","fixed_in":["9.7.5-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libgrokj2k","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.7.5-1"}]}]}],"products":[{"vendor":"grok_project","product":"grok"}],"references":[{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/grok/OSV-2021-1344.yaml","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39021","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/osamu620/OpenHTJ2K","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45935"},{"url":"https://github.com/advisories/GHSA-xx3m-p5mx-cgw5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-45935","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-45935","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2021-12-31T23:58:13Z","modified":"2024-08-04T04:54:31.058Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32644","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2021-12-31T23:58:13Z","modified":"2024-08-04T04:54:31Z","updated_at":"2026-11-03T03:08:25.222984Z"}],"ghsa":[{"id":"GHSA-xx3m-p5mx-cgw5","title":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from...","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2022-01-02T00:00:49Z","modified":"2023-02-03T05:03:49Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:25.886002Z"}],"nvd":[{"id":"CVE-2021-45935","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2022-01-01T01:15:08.68Z","modified":"2026-06-17T04:14:16.733Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/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"}],"osv":[{"id":"CVE-2021-45935","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2022-01-01T01:15:08.68Z","modified":"2026-03-14T11:18:10.061676Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:22.18434Z"},{"id":"DEBIAN-CVE-2021-45935","description":"Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress (called from std::__1::__packaged_task_func\u003cstd::__1::__bind\u003cgrk::T1DecompressScheduler::deco and std::__1::packaged_task\u003cint).","status":"published","published":"2022-01-01T01:15:08.68Z","modified":"2026-10-23T18:04:17.062547525Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:35.799676Z"}]}}