Medium severity · published Oct 19, 2026
CVE-2026-112158
MikroTik RouterOS ipt_SAME.ko same_check integer overflow
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RO
RouterOS · MikroTik
6.0; 6.1; 6.2; 6.3; 6.4; 6.5; +34 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112158
github.com
https://github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow-brick.md
vuldb.com
https://vuldb.com/cve/CVE-2026-112158
vuldb.com
https://vuldb.com/submit/956852
vuldb.com
https://vuldb.com/vuln/422285
vuldb.com
https://vuldb.com/vuln/422285/cti
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