{"id":"CVE-2024-43688","aliases":["EUVD-2024-40424","GHSA-598h-v73f-rx7f"],"status":"published","title":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based...","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00524,"percentile":0.44774,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2024-08-20T00:00:00Z","modified":"2026-10-28T10:58:10Z","products":[{"vendor":"openbsd","product":"openbsd"},{"vendor":"vixie","product":"cron"}],"references":[{"url":"https://www.supernetworks.org/advisories/CVE-2024-43688-openbsd-cron-heap-underflow.txt","tags":["advisory"]},{"url":"https://github.com/vixie/cron/commit/9cc8ab1087bb9ab861dd5595c41200683c9f6712","tags":["fix"]},{"url":"https://www.supernetworks.org/CVE-2024-43688/openbsd-cron-heap-underflow.txt","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43688","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-598h-v73f-rx7f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43688.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-43688","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","status":"published","published":"2024-08-20T00:00:00Z","modified":"2024-08-26T13:23:36.277Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:58.357949Z"}],"euvd":[{"id":"EUVD-2024-40424","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","status":"published","published":"2024-08-20T00:00:00Z","modified":"2024-08-26T13:23:36Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-03T00:56:11.81667Z"}],"ghsa":[{"id":"GHSA-598h-v73f-rx7f","title":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based...","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","status":"published","published":"2024-08-20T06:31:37Z","modified":"2024-08-26T15:32:17Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:58:04.94606Z"}],"nvd":[{"id":"CVE-2024-43688","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","status":"published","published":"2024-08-20T06:15:04.983Z","modified":"2026-06-17T07:51:32.35Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:10:19.870727Z"}],"osv":[{"id":"CVE-2024-43688","description":"cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.","status":"published","published":"2024-08-20T00:00:00Z","modified":"2026-10-28T10:58:10.767220662Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-02T15:44:42.322107Z"}]}}