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TI-2018-01072 Aliases CVE-2018-1156GHSA-m6gp-7pqc-8gc5

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to stack buffer overflow through…

Priority MEDIUM 48CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to stack buffer overflow through the license upgrade interface. This vulnerability could theoretically allow a remote authenticated attacker execute arbitrary code on the system.

Why it matters now

EPSS 0.07431 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:*before 6.40.9VulnerableMikroTik
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*before 6.42.7VulnerableMikroTik
  • cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:* Versions before 6.40.9 Vulnerable ·MikroTik
  • cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:* Versions before 6.42.7 Vulnerable ·MikroTik

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1156
  2. 2026-10-03 Alias added: GHSA-m6gp-7pqc-8gc5

References

Exploit 1

Advisory 2

  • TI-2018-05369 A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-58872 SSH session privilege manipulation via a crafted username in Mikrotik RouterOS KEVCVSS 4.0CRITICAL 9.2
  • TI-2018-10669 MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary… KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-47574 Kernel memory disclosure and denial of service in MikroTik RouterOS btest service KEVCVSS 4.0HIGH 8.8
  • TI-2026-47576 SSH Pre-Authentication Rekey State Bypass in MikroTik RouterOS KEVCVSS 4.0MEDIUM 6.9
  • TI-2022-22302 Out-of-bounds read in MicroTik RouterOS CVSS 3.1CRITICAL 9.8
See all 87 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences