MikroTik RouterOS ipt_SAME.ko same_check integer overflow
Summary
| CVE | CVE-2026-112158 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-19 16:17:05 UTC |
| Updated | 2026-10-19 20:43:24 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 7.1 HIGH from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-189 | CWE-190 | CWE-190 Integer Overflow | CWE-189 Numeric Error
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.1 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | DECLARED | 7.1 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X |
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:O/RC:C |
| 3.0 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:O/RC:C |
| 2.0 | [email protected] | Secondary | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C | |
| 2.0 | CNA | DECLARED | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C/E:ND/RL:OF/RC:C |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:O/RC:C
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MikroTik | RouterOS | affected 6.0 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.1 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.2 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.3 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.4 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.5 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.6 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.7 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.8 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.9 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.10 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.11 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.12 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.13 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.14 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.15 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.16 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.17 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.18 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.19 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.20 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.21 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.22 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.23 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.24 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.25 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.26 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.27 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.28 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.29 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.30 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.31 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.32 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.33 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.34 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.35 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.36 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.37 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.38 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.39 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.0 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.1 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.2 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.3 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.4 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.40.5 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.41 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.42 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.43 | Not specified |
| CNA | MikroTik | RouterOS | affected 6.44 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.0 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.1 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.2 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.3 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.4 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.5 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.6 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.7 | Not specified |
| CNA | MikroTik | RouterOS | affected 7.20.8 | Not specified |
| CNA | MikroTik | RouterOS | unaffected 7.21.5 | Not specified |
| CNA | MikroTik | RouterOS | unaffected 7.23.1 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| vuldb.com/submit/956852 | [email protected] | vuldb.com | |
| vuldb.com/vuln/422285 | [email protected] | vuldb.com | |
| vuldb.com/cve/CVE-2026-112158 | [email protected] | vuldb.com | |
| github.com/MeetFireAgain/cve/mikrotik/routeros-ipt-same-integer-overflow... | [email protected] | github.com | |
| vuldb.com/vuln/422285/cti | [email protected] | vuldb.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: CindyCity (VulDB User) (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-19T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-10-19T02:00:00.000Z | VulDB entry created |
| CNA | 2026-10-19T09:11:00.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.