CVE-2026-112158

MEDIUMCVSS 6.5/10

Last modified

CVE-2026-112158 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.

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.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
MikroTikRouterOS6.0; 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

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-112158?
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.
How severe is CVE-2026-112158?
CVE-2026-112158 has a CVSS score of 6.5/10 (MEDIUM severity).
How do I fix CVE-2026-112158?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST