CVE-2024-27686

high

Published 2026-05-08 · Modified 2026-05-08

CVSS v3

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2

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VIR risk

7.5

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.

Predictions

Exploit likelihood

83%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

https://github.com/ice-wzl/RouterOS-SMB-DOS-POC
https://www.exploit-db.com/exploits/51931

CWEs

CWE-400

Verify integrity in audit chain (admin only). AS-IS.