CVE-2026-112158

MikroTik RouterOS ipt_SAME.ko same_check integer overflow

MEDIUM

6.5

CVSS Score

Published: October 19, 2026 at 04:00 PM UTC

Updated: October 19, 2026 at 08:43 PM UTC

1 product affected across 1 vendorRouterOS

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

RouterOS · Mikrotik

90%

6.06.16.106.116.126.136.146.156.166.176.186.196.26.206.216.226.236.246.256.266.276.286.296.36.306.316.326.336.346.356.366.376.386.396.46.406.40.06.40.16.40.26.40.36.40.46.40.56.416.42 6.436.446.56.66.76.86.97.20.07.20.17.20.27.20.37.20.47.20.57.20.67.20.77.20.8

Vendor states this is fixed in 7.21.5 (unaffected)

Vendor states this is fixed in 7.23.1 (unaffected)