{"id":"CVE-2025-1673","aliases":["EUVD-2025-5069","GHSA-jjhx-rrh4-j8mx"],"status":"published","title":"Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg","description":"A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0035,"percentile":0.29013,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2025-02-25T07:12:13Z","modified":"2026-10-28T02:30:58Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-jjhx-rrh4-j8mx","tags":["Mitigation","Vendor Advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1673.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-1673","tags":["advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-1673","title":"Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg","description":"A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.","status":"published","published":"2025-02-25T07:12:13.455Z","modified":"2026-10-13T19:58:44.368Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:32:49.824855Z"}],"euvd":[{"id":"EUVD-2025-5069","description":"A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.","status":"published","published":"2025-02-25T07:12:13Z","modified":"2026-10-13T19:58:44Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:18.769576Z"}],"nvd":[{"id":"CVE-2025-1673","description":"A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.","status":"published","published":"2025-02-25T07:15:18.837Z","modified":"2026-10-13T20:17:00.5Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:10:51.871789Z"}],"osv":[{"id":"CVE-2025-1673","title":"Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg","description":"A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.","status":"published","published":"2025-02-25T07:12:13.455Z","modified":"2026-10-28T02:30:58.989336945Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:44:46.340268Z"}]}}