{"schemaVersion":3,"id":"CVE-2026-112158","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A weakness has been identified in MikroTik RouterOS up to 6.40.5/6.44/7.20.8. Impacted is the function same_check of the file ipt_SAME.ko. Executing a manipulation can lead to integer overflow. The attack may be launched remotely. Upgrading to version 7.21.5 and 7.23.1 is recommended to address this issue. You should upgrade the affected component.","dates":{"published":"2026-10-19T16:00:06.444Z","modified":"2026-10-19T17:09:43.696Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.1,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":7.1,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":6.8,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C/E:ND/RL:OF/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":7.1,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.8,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00334,"percentile":0.25354,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-20T00:00:00.000Z","score":0.00334,"percentile":0.25354}],"last30":[{"date":"2026-10-20T00:00:00.000Z","score":0.00334,"percentile":0.25354}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-189","name":"Numeric Errors","description":"Weaknesses in this category are related to improper calculation or conversion of numbers.","type":"category","status":"Draft","abstraction":null,"likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/189.html"},{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative 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| 6.1 | 6.2 | 6.3 | 6.4 | 6.5 | 6.6 | 6.7 | 6.8 | 6.9 | 6.10 | 6.11 | 6.12 | 6.13 | 6.14 | 6.15 | 6.16 | 6.17 | 6.18 | 6.19 | 6.20 | 6.21 | 6.22 | 6.23 | 6.24 | 6.25 | 6.26 | 6.27 | 6.28 | 6.29 | 6.30 | 6.31 | 6.32 | 6.33 | 6.34 | 6.35 | 6.36 | 6.37 | 6.38 | 6.39 | 6.40 | 6.40.0 | 6.40.1 | 6.40.2 | 6.40.3 | 6.40.4 | 6.40.5 | 6.41 | 6.42 | 6.43 | 6.44 | 7.20.0 | 7.20.1 | 7.20.2 | 7.20.3 | 7.20.4 | 7.20.5 | 7.20.6 | 7.20.7 | 7.20.8","eol":{"isEol":true,"eolDate":null,"matchMethod":"cpe","cycle":{"name":"6.0","label":"RouterOS 6.0","eolFrom":null,"isLts":false,"isMaintained":false,"latestVersion":"6.0"},"product":{"name":"routeros","label":"RouterOS","category":"os"}},"hubHref":"/vendor/mikrotik/routeros"}],"affectedCount":1,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://vuldb.com/vuln/422285","label":"vuldb.com/vuln/422285","hostname":"vuldb.com","tags":["VDB Entry","Technical Description"]},{"url":"https://vuldb.com/vuln/422285/cti","label":"vuldb.com/vuln/422285/cti","hostname":"vuldb.com","tags":["Signature","Permissions Required"]},{"url":"https://vuldb.com/cve/CVE-2026-112158","label":"vuldb.com/cve/CVE-2026-112158","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://vuldb.com/submit/956852","label":"vuldb.com/submit/956852","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.md","label":"github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.md","hostname":"github.com","tags":["Broken Link"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-19T16:00:06.444Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-19T17:09:43.696Z","label":"Last modified","detail":"Vulnerability 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