CVE-2026-112158
MikroTik RouterOS ipt_SAME.ko same_check integer overflow
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | 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 | VulDB |
| 3.1 | 6.5 Medium | 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 | VulDB |
| 3.0 | 6.5 Medium | 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 | VulDB |
| 2.0 | 6.8 Medium | AV:N/AC:L/Au:S/C:N/I:N/A:C/E:ND/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
RouterOSMikroTik |
|
References
- VDB-422285 | MikroTik RouterOS ipt_SAME.ko same_check integer overflowvdb-entrytechnical-description
- VDB-422285 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-112158 | CVE Analysis and Reportthird-party-advisory
- Submit #956852 | MikroTik RouterOS <= 7.20.x long-term channel (tested: 6.40.5, 6.44, 7.20.8); v6 line affected Integer Overflowthird-party-advisory
- https://github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.mdbroken-link
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