{"id":"CVE-2023-37186","aliases":["AZL-109481","EUVD-2023-41106","GHSA-7vjq-m92p-42wp"],"status":"published","title":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via...","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00834,"percentile":0.57987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2023-12-25T00:00:00Z","modified":"2026-11-05T05:36:30Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"blosc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.21.6-1"}]}]}],"products":[{"vendor":"blosc","product":"c-blosc2"}],"references":[{"url":"https://github.com/Blosc/c-blosc2/issues/522","tags":["x_transferred","Exploit","Issue Tracking","Vendor Advisory","report"]},{"url":"https://github.com/Blosc/c-blosc2/commit/d55bfcd6804699e1435dc3e233fd76c8a5d3f9e3","tags":["x_transferred","Patch","fix"]},{"url":"https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3","tags":["x_transferred","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37186","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-7vjq-m92p-42wp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37186.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-37186","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T00:00:00Z","modified":"2024-08-02T17:09:34.105Z","updated_at":"2026-11-02T14:35:16.126506Z"}],"euvd":[{"id":"EUVD-2023-41106","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T00:00:00Z","modified":"2024-08-02T17:09:34Z","updated_at":"2026-11-03T03:50:03.761294Z"}],"ghsa":[{"id":"GHSA-7vjq-m92p-42wp","title":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via...","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T09:30:20Z","modified":"2024-01-07T05:05:34Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:55:20.878476Z"}],"nvd":[{"id":"CVE-2023-37186","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T07:15:08.98Z","modified":"2026-06-17T06:07:41.043Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:08:57.117371Z"}],"osv":[{"id":"AZL-109481","title":"CVE-2023-37186 affecting package blosc 1.21.6-1","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T07:15:08Z","modified":"2026-11-05T05:36:30Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-05T16:41:18.42484Z"},{"id":"CVE-2023-37186","description":"C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.","status":"published","published":"2023-12-25T00:00:00Z","modified":"2026-10-28T10:38:46.704541111Z","updated_at":"2026-11-02T15:44:32.510144Z"}]}}