{"id":"CVE-2021-4022","aliases":["EUVD-2021-33925","GHSA-5wm3-rhr5-rwmm"],"status":"published","title":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture....","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","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":0.00305,"percentile":0.23467,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-416"],"published":"2022-08-25T17:26:43Z","modified":"2026-10-20T10:54:55Z","products":[{"vendor":"rizin","product":"rizin"},{"vendor":"rizinorg","product":"rizin"}],"references":[{"url":"https://github.com/rizinorg/rizin/issues/2015","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4022"},{"url":"https://github.com/advisories/GHSA-5wm3-rhr5-rwmm"}],"sources":{"cve":[{"id":"CVE-2021-4022","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","status":"published","published":"2022-08-25T17:26:43Z","modified":"2024-08-03T17:16:03.28Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:33:08.045407Z"}],"euvd":[{"id":"EUVD-2021-33925","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","status":"published","published":"2022-08-25T17:26:43Z","modified":"2024-08-03T17:16:03Z","updated_at":"2026-11-03T03:25:10.888157Z"}],"ghsa":[{"id":"GHSA-5wm3-rhr5-rwmm","title":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture....","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","status":"published","published":"2022-08-26T00:03:31Z","modified":"2023-01-29T05:01:46Z","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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:44:54.907829Z"}],"nvd":[{"id":"CVE-2021-4022","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","status":"published","published":"2022-08-25T18:15:09.443Z","modified":"2026-06-17T04:18:54.66Z","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"}],"cwes":["CWE-400","CWE-416"],"updated_at":"2026-11-02T14:07:06.906968Z"}],"osv":[{"id":"CVE-2021-4022","description":"A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.","status":"published","published":"2022-08-25T18:15:09.443Z","modified":"2026-10-20T10:54:55.772228496Z","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":"2026-11-02T15:44:21.249056Z"}]}}