{"id":"CVE-2018-7445","aliases":["EUVD-2018-19176","GHSA-v596-x9hf-63gj"],"status":"published","title":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session...","description":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.65828,"percentile":0.99273,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2018-03-19T21:00:00Z","modified":"2026-06-17T02:03:08Z","kev":{"date_added":"2022-09-08","due_date":"2022-09-29","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-09-08"},{"source":"kev","since":"2022-09-08"}],"exploits":[{"source":"exploitdb","id":"EDB-44290","title":"MikroTik RouterOS \u003c 6.41.3/6.42rc27 - SMB Buffer Overflow","type":"remote","platform":"hardware","date":"2018-03-15","url":"https://www.exploit-db.com/exploits/44290"}],"products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"http://www.securityfocus.com/bid/103427","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://seclists.org/fulldisclosure/2018/Mar/38","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit","Mailing List","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/44290/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-overflow","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7445","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-7445"},{"url":"https://www.exploit-db.com/exploits/44290"},{"url":"https://github.com/advisories/GHSA-v596-x9hf-63gj"}],"sources":{"cve":[{"id":"CVE-2018-7445","description":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.","status":"published","published":"2018-03-19T21:00:00Z","modified":"2025-10-21T23:45:55.366Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:35:09.908186Z"}],"euvd":[{"id":"EUVD-2018-19176","description":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.","status":"published","published":"2018-03-19T21:00:00Z","modified":"2025-10-21T23:45:55Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2022-09-08","updated_at":"2026-11-02T20:31:23.427989Z"}],"ghsa":[{"id":"GHSA-v596-x9hf-63gj","title":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session...","description":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.","status":"published","published":"2022-05-14T03:29:33Z","modified":"2025-10-22T00:32:32Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:04:05.954742Z"}],"kev":[{"id":"CVE-2018-7445","title":"MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability","description":"In MikroTik RouterOS, a stack-based buffer overflow occurs when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system.","cwes":["CWE-119"],"kev":{"date_added":"2022-09-08","due_date":"2022-09-29","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2018-7445","description":"A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.","status":"published","published":"2018-03-19T21:29:01.083Z","modified":"2026-06-17T02:03:08.46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:24.264003Z"}]}}