Mikrotik RouterOS (x86) 6.40.5 through 6.49.10 (fixed in 7) allows a remote attacker to cause a denial of service (device crash) via crafted packet data to the SMB service on TCP port 445.
History

Fri, 08 May 2026 21:00:00 +0000

Type Values Removed Values Added
Title SMB Service Denial of Service in Mikrotik RouterOS
Weaknesses CWE-120

Fri, 08 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 08 May 2026 06:45:00 +0000

Type Values Removed Values Added
Title SMB Service Denial of Service in Mikrotik RouterOS
Weaknesses CWE-120

Fri, 08 May 2026 05:45:00 +0000

Type Values Removed Values Added
Description Mikrotik RouterOS (x86) 6.40.5 through 6.49.10 (fixed in 7) allows a remote attacker to cause a denial of service (device crash) via crafted packet data to the SMB service on TCP port 445.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-08T14:00:45.540Z

Reserved: 2024-02-26T00:00:00.000Z

Link: CVE-2024-27686

cve-icon Vulnrichment

Updated: 2026-05-08T14:00:41.769Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-08T06:16:09.003

Modified: 2026-05-08T16:02:14.343

Link: CVE-2024-27686

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T20:45:16Z