CVE-2026-112158 (GCVE-0-2026-112158)

Vulnerability from cvelistv5 – Published: 2026-10-19 16:00 – Updated: 2026-10-19 17:09
VLAI
Title
MikroTik RouterOS ipt_SAME.ko same_check integer overflow
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 17:08 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3913 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/422285 vdb-entrytechnical-description
https://vuldb.com/vuln/422285/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112158 third-party-advisory
https://vuldb.com/submit/956852 third-party-advisory
https://github.com/MeetFireAgain/cve/mikrotik/rou… broken-link
Impacted products
Vendor Product Version CPE status
MikroTik RouterOS Affected: 6.0
Affected: 6.1
Affected: 6.2
Affected: 6.3
Affected: 6.4
Affected: 6.5
Affected: 6.6
Affected: 6.7
Affected: 6.8
Affected: 6.9
Affected: 6.10
Affected: 6.11
Affected: 6.12
Affected: 6.13
Affected: 6.14
Affected: 6.15
Affected: 6.16
Affected: 6.17
Affected: 6.18
Affected: 6.19
Affected: 6.20
Affected: 6.21
Affected: 6.22
Affected: 6.23
Affected: 6.24
Affected: 6.25
Affected: 6.26
Affected: 6.27
Affected: 6.28
Affected: 6.29
Affected: 6.30
Affected: 6.31
Affected: 6.32
Affected: 6.33
Affected: 6.34
Affected: 6.35
Affected: 6.36
Affected: 6.37
Affected: 6.38
Affected: 6.39
Affected: 6.40
Affected: 6.40.0
Affected: 6.40.1
Affected: 6.40.2
Affected: 6.40.3
Affected: 6.40.4
Affected: 6.40.5
Affected: 6.41
Affected: 6.42
Affected: 6.43
Affected: 6.44
Affected: 7.20.0
Affected: 7.20.1
Affected: 7.20.2
Affected: 7.20.3
Affected: 7.20.4
Affected: 7.20.5
Affected: 7.20.6
Affected: 7.20.7
Affected: 7.20.8
Unaffected: 7.21.5
Unaffected: 7.23.1
    cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*
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Show details on NVD website

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                "vectorString": "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",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "cna@vuldb.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-112158",
                "options": [
                  {
                    "exploitation": "none"
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                  {
                    "automatable": "no"
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                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-19T17:08:58.536559Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-10-19T16:17:05.917",
        "references": [
          {
            "source": "cna@vuldb.com",
            "url": "https://github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.md"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/cve/CVE-2026-112158"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/submit/956852"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/vuln/422285"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/vuln/422285/cti"
          }
        ],
        "sourceIdentifier": "cna@vuldb.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-189"
              },
              {
                "lang": "en",
                "value": "CWE-190"
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            ],
            "source": "cna@vuldb.com",
            "type": "Secondary"
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    },
    "vulnrichment": {
      "containers": {
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          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-112158",
                    "options": [
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              "dateUpdated": "2026-10-19T17:09:04.336Z",
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              "shortName": "CISA-ADP"
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        ],
        "cna": {
          "affected": [
            {
              "cpes": [
                "cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*"
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              "product": "RouterOS",
              "vendor": "MikroTik",
              "versions": [
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                {
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                {
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                  "status": "affected",
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                {
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                {
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                {
                  "status": "affected",
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                {
                  "status": "affected",
                  "version": "6.37"
                },
                {
                  "status": "affected",
                  "version": "6.38"
                },
                {
                  "status": "affected",
                  "version": "6.39"
                },
                {
                  "status": "affected",
                  "version": "6.40"
                },
                {
                  "status": "affected",
                  "version": "6.40.0"
                },
                {
                  "status": "affected",
                  "version": "6.40.1"
                },
                {
                  "status": "affected",
                  "version": "6.40.2"
                },
                {
                  "status": "affected",
                  "version": "6.40.3"
                },
                {
                  "status": "affected",
                  "version": "6.40.4"
                },
                {
                  "status": "affected",
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                  "status": "affected",
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                },
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                },
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                  "status": "affected",
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                  "status": "affected",
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                  "status": "unaffected",
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                {
                  "status": "unaffected",
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              "lang": "en",
              "type": "reporter",
              "value": "CindyCity (VulDB User)"
            }
          ],
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            {
              "lang": "en",
              "value": "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."
            }
          ],
          "metrics": [
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                "baseSeverity": "HIGH",
                "vectorString": "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",
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            {
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                  "description": "Numeric Error",
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                  "type": "CWE"
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            },
            {
              "name": "VDB-422285 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/422285/cti"
            },
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              "url": "https://vuldb.com/cve/CVE-2026-112158"
            },
            {
              "name": "Submit #956852 | MikroTik RouterOS \u003c= 7.20.x long-term channel (tested: 6.40.5, 6.44, 7.20.8); v6 line affected Integer Overflow",
              "tags": [
                "third-party-advisory"
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              "url": "https://vuldb.com/submit/956852"
            },
            {
              "tags": [
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              "time": "2026-10-19T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
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              "time": "2026-10-19T02:00:00.000Z",
              "value": "VulDB entry created"
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              "value": "VulDB entry last update"
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          "x_generator": [
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      },
      "cveMetadata": {
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        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-112158",
        "datePublished": "2026-10-19T16:00:06.444Z",
        "dateReserved": "2026-10-19T07:05:54.496Z",
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        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
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    }
  }
}



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