CVE-2024-54952Network attack vector

Remote SMB service interruption via null dereference

Published May 29, 2025 · Updated May 29, 2025

Memory corruption in MikroTik RouterOS 6.40.5 SMB service allows remote attackers to interrupt the service with crafted packets. The SMB packet-processing path dereferences a null pointer while handling a specially crafted packet, making the service unavailable. No authentication is required, but the SMB service must be enabled and network-reachable; the documented consequence is limited to SMB service unavailability.

CVSS severity7.5
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in MikroTik RouterOS 6.40.5 SMB service allows remote attackers to interrupt the service with crafted packets. The SMB packet-processing path dereferences a null pointer while handling a specially crafted packet, making the service unavailable. No authentication is required, but the SMB service must be enabled and network-reachable; the documented consequence is limited to SMB service unavailability.

The record

CVE
CVE-2024-54952
Published
May 29, 2025
Updated
May 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2025CVE publishedPublication date reported by the CVE source.
  2. May 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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