{"id":"CVE-2026-56719","title":"MikroTik RouterOS before 7.24 contains an out-of-bounds read vulnerability in the userspace SMB daemon that allows unauthenticated attackers to read beyond the end of the request buffer by supplying a crafted uniPwdLen field value in a m…","summary":"MikroTik RouterOS before 7.24 contains an out-of-bounds read vulnerability in the userspace SMB daemon that allows unauthenticated attackers to read beyond the end of the request buffer by supplying a crafted uniPwdLen field value in a m…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"vendor":"MikroTik","product":"RouterOS","affected":["RouterOS <= 6.49.18","RouterOS >= 7.0.0 <= 7.11.2"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:17:10.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56719","references":[{"url":"https://forum.mikrotik.com/t/7-24-stable-is-released/272381","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/mikrotik-routeros-out-of-bounds-read-via-smb1-sessionsetupandx","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-16T15:51:43.641477Z"},"ingestedAt":"2026-09-16T13:56:12.619Z","epss":0.00376,"epssPercentile":0.31396,"slug":"CVE-2026-56719","body":"## Overview\n\nMikroTik RouterOS before 7.24 contains an out-of-bounds read vulnerability in the userspace SMB daemon that allows unauthenticated attackers to read beyond the end of the request buffer by supplying a crafted uniPwdLen field value in a minimal SMB1 SessionSetupAndX frame. The out-of-bounds read occurs in the SessionSetupAndX handler before any credential validation, potentially exposing sensitive memory contents.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}