{"id":"CVE-2021-39536","aliases":["DEBIAN-CVE-2021-39536","EUVD-2021-25893","GHSA-h9fc-rg7x-48xg"],"status":"published","title":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer...","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code 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":0.65161,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2021-09-20T15:26:55Z","modified":"2026-10-23T18:03:32Z","fixes":[{"ecosystem":"Debian:12","package":"libxsmm","fixed_in":["1.17-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libxsmm","fixed_in":["1.17-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libxsmm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libxsmm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17-1"}]}]}],"products":[{"vendor":"libxsmm_project","product":"libxsmm"}],"references":[{"url":"https://github.com/hfp/libxsmm/issues/402","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39536"},{"url":"https://github.com/advisories/GHSA-h9fc-rg7x-48xg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-39536","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-39536","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2021-09-20T15:26:55Z","modified":"2024-08-04T02:06:42.441Z","updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25893","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2021-09-20T15:26:55Z","modified":"2024-08-04T02:06:42Z","updated_at":"2026-11-03T03:24:23.166742Z"}],"ghsa":[{"id":"GHSA-h9fc-rg7x-48xg","title":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer...","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2022-05-24T19:15:09Z","modified":"2023-01-30T05:02:11Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:35.225326Z"}],"nvd":[{"id":"CVE-2021-39536","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2021-09-20T16:15:12.433Z","modified":"2026-06-17T04:03:46.603Z","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"}],"osv":[{"id":"CVE-2021-39536","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2021-09-20T16:15:12.433Z","modified":"2026-03-14T11:07:15.750904Z","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"}],"updated_at":"2026-11-02T15:44:20.843843Z"},{"id":"DEBIAN-CVE-2021-39536","description":"An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.","status":"published","published":"2021-09-20T16:15:12.433Z","modified":"2026-10-23T18:03:32.253153846Z","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"}],"updated_at":"2026-11-02T15:45:35.521549Z"}]}}