{"id":"CVE-2026-38973","aliases":["EUVD-2026-41976","GHSA-r4w3-7jp7-m9g5"],"status":"published","title":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method...","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00164,"percentile":0.05703,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-07-06T00:00:00Z","modified":"2026-10-28T11:12:18Z","references":[{"url":"https://github.com/mrubyc/mrubyc/issues/279%2C","tags":["report"]},{"url":"https://github.com/mrubyc/mrubyc/commit/f83a8b67ca1c7c62ac0dd548a363d79f767c4e30","tags":["fix"]},{"url":"https://github.com/mrubyc/mrubyc","tags":["package"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38973","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r4w3-7jp7-m9g5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38973.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-38973","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","status":"published","published":"2026-07-06T00:00:00Z","modified":"2026-07-09T14:57:12.423Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:19:58.214427Z"}],"euvd":[{"id":"EUVD-2026-41976","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","status":"published","published":"2026-07-06T00:00:00Z","modified":"2026-07-09T14:57:12Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T18:20:04.126011Z"}],"ghsa":[{"id":"GHSA-r4w3-7jp7-m9g5","title":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method...","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","status":"published","published":"2026-07-07T00:30:59Z","modified":"2026-07-09T18:32:35Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:09:22.189239Z"}],"nvd":[{"id":"CVE-2026-38973","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","status":"published","published":"2026-07-06T22:16:48.767Z","modified":"2026-07-09T16:16:40.723Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:28.040501Z"}],"osv":[{"id":"CVE-2026-38973","description":"mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().","status":"published","published":"2026-07-06T00:00:00Z","modified":"2026-10-28T11:12:18.97431236Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:03.040464Z"}]}}