{"id":"CVE-2016-2196","aliases":["EUVD-2016-3280","GHSA-6vrf-cpx2-322q","UBUNTU-CVE-2016-2196"],"status":"published","title":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows...","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05384,"percentile":0.92719,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2016-05-13T14:00:00Z","modified":"2026-10-24T10:30:44Z","products":[{"vendor":"botan_project","product":"botan"}],"references":[{"url":"http://marc.info/?l=botan-devel\u0026m=145435148602911\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Vendor Advisory","advisory"]},{"url":"http://botan.randombit.net/security.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2196"},{"url":"https://github.com/advisories/GHSA-6vrf-cpx2-322q"},{"url":"https://ubuntu.com/security/CVE-2016-2196","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-2196","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-2196","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"published","published":"2016-05-13T14:00:00Z","modified":"2024-08-05T23:24:48.252Z","updated_at":"2026-11-02T14:33:33.07583Z"}],"euvd":[{"id":"EUVD-2016-3280","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"published","published":"2016-05-13T14:00:00Z","modified":"2024-08-05T23:24:48Z","updated_at":"2026-11-03T02:22:54.125931Z"}],"ghsa":[{"id":"GHSA-6vrf-cpx2-322q","title":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows...","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"published","published":"2022-05-17T03:55:36Z","modified":"2023-01-28T05:00:44Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:43:24.37974Z"}],"nvd":[{"id":"CVE-2016-2196","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"published","published":"2016-05-13T14:59:09.76Z","modified":"2026-06-17T00:43:38.993Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:03:25.366449Z"}],"osv":[{"id":"CVE-2016-2196","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"published","published":"2016-05-13T14:59:09.76Z","modified":"2026-10-24T10:30:44.54493702Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:02.114472Z"},{"id":"UBUNTU-CVE-2016-2196","description":"Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.","status":"withdrawn","published":"2016-05-13T14:59:00Z","modified":"2025-07-16T07:34:12.023625Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:11.872222Z"}]}}