What’s Vulnerable › Vulnerabilities

CVE-2026-112158: MikroTik RouterOS ipt_SAME.ko same_check integer overflow

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-19
• Weakness: CWE-189

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 products

• MikroTik RouterOS: 6.0, 6.1, 6.2, 6.3, 6.4, 6.5 (+54)

References

• https://github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.md
• https://vuldb.com/cve/CVE-2026-112158
• https://vuldb.com/submit/956852
• https://vuldb.com/vuln/422285
• https://vuldb.com/vuln/422285/cti

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