CVE-2026-112158
MikroTik RouterOS ipt_SAME.ko same_check integer overflow
MikroTik RouterOSNetwork & edge
CVSS
7.1HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.33%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 30
- RouterOSaffected: 6.0CVE List
- RouterOSaffected: 6.1CVE List
- RouterOSaffected: 6.2CVE List
- RouterOSaffected: 6.3CVE List
- RouterOSaffected: 6.4CVE List
- RouterOSaffected: 6.5CVE List
- RouterOSaffected: 6.6CVE List
- RouterOSaffected: 6.7CVE List
- RouterOSaffected: 6.8CVE List
- RouterOSaffected: 6.9CVE List
- RouterOSaffected: 6.10CVE List
- RouterOSaffected: 6.11CVE List
- RouterOSaffected: 6.12CVE List
- RouterOSaffected: 6.13CVE List
- RouterOSaffected: 6.14CVE List
- RouterOSaffected: 6.15CVE List
- RouterOSaffected: 6.16CVE List
- RouterOSaffected: 6.17CVE List
- RouterOSaffected: 6.18CVE List
- RouterOSaffected: 6.19CVE List
- RouterOSaffected: 6.20CVE List
- RouterOSaffected: 6.21CVE List
- RouterOSaffected: 6.22CVE List
- RouterOSaffected: 6.23CVE List
- RouterOSaffected: 6.24CVE List
- RouterOSaffected: 6.25CVE List
- RouterOSaffected: 6.26CVE List
- RouterOSaffected: 6.27CVE List
- RouterOSaffected: 6.28CVE List
- RouterOSaffected: 6.29CVE List