{"id":"CVE-2026-56719","revision":"ec620b50fc3f461eb54662b5f4bc4edc","records":[{"revision":"ec620b50fc3f461eb54662b5f4bc4edc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-56719","aliases":[],"title":"MikroTik RouterOS < 7.24 Out-of-Bounds Read via SMB1 SessionSetupAndX","description":"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 minimal SMB1 SessionSetupAndX frame. The out-of-bounds read occurs in the SessionSetupAndX handler before any credential validation, potentially exposing sensitive memory contents.","state":0,"publishedAt":"2026-09-16T13:07:38.839+00:00","modifiedAt":"2026-10-01T15:20:03.94+00:00","affected":[{"ecosystem":"Vendor product","name":"RouterOS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unknown\",\n                    \"vendor\": \"MikroTik\",\n                    \"product\": \"RouterOS\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"6.49.18\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"7.0.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"7.11.2\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"7.24.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","score":6.5,"severity":"MEDIUM"}],"references":["https://forum.mikrotik.com/t/7-24-stable-is-released/272381","https://www.vulncheck.com/advisories/mikrotik-routeros-out-of-bounds-read-via-smb1-sessionsetupandx"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56719","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-56719","identifiers":["CVE-2026-56719"]},"retained":false,"historicalAffected":[]}],"coverage":[]}