CVE-2024-52504Network attack vector

Remote service interruption via aborted file transfer

Published Aug 12, 2025 · Updated Aug 12, 2025

Improper exception handling in Siemens SIPROTEC 4 and 4 Compact devices allows remote attackers to force a restart through file transfers. The file-transfer handler fails to recover when an operation is interrupted, leaving the device in a denial-of-service state. No authentication or user interaction is required, and normal operation remains unavailable until the device is restarted.

CVSS severity8.7
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper exception handling in Siemens SIPROTEC 4 and 4 Compact devices allows remote attackers to force a restart through file transfers. The file-transfer handler fails to recover when an operation is interrupted, leaving the device in a denial-of-service state. No authentication or user interaction is required, and normal operation remains unavailable until the device is restarted.

The record

CVE
CVE-2024-52504
Published
Aug 12, 2025
Updated
Aug 12, 2025
Vendor
Siemens
Product
SIPROTEC 4 7SA6
Classifications
CWE-754, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V4.78

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SIPROTEC 4 7SA6version=0 <V4.78
Siemens · SIPROTEC 7VE6version=0 <*
Siemens · SIPROTEC 4 7SD5version=0 <V4.78
Siemens · SIPROTEC 4 7SJ64version=0 <*
Siemens · SIPROTEC 4 6MD61version=0 <*
Siemens · SIPROTEC 4 7VK61version=0 <*
Siemens · SIPROTEC 7SK81version=0 <*
Siemens · SIPROTEC 7SJ81version=0 <*
Siemens · SIPROTEC 4 6MD665version=0 <*
Siemens · SIPROTEC 4 7UM61version=0 <*
Siemens · SIPROTEC 7VU683version=0 <*
Siemens · SIPROTEC 4 7SJ61version=0 <*
Siemens · SIPROTEC 4 7SJ62version=0 <*
Siemens · SIPROTEC 4 7SD610version=0 <V4.78
Siemens · SIPROTEC 4 6MD66version=0 <*
Siemens · SIPROTEC 4 7UT612version=0 <*
Siemens · SIPROTEC 7RW80version=0 <*
Siemens · SIPROTEC 4 7SJ66version=0 <*
Siemens · SIPROTEC 4 7UM62version=0 <*
Siemens · SIPROTEC 7SJ80version=0 <*
Siemens · SIPROTEC 4 7UT613version=0 <*
Siemens · SIPROTEC 4 7SJ63version=0 <*
Siemens · SIPROTEC 7SK80version=0 <*
Siemens · SIPROTEC 4 7ST6version=0 <*
Siemens · SIPROTEC 4 7SA522version=0 <*
Siemens · SIPROTEC 4 7SS52version=0 <*
Siemens · SIPROTEC 4 7UT63version=0 <*
Siemens · SIPROTEC 7SD80version=0 <*
Siemens · SIPROTEC 4 6MD63version=0 <*

Published CVSS scores

8.7Siemens ProductCERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5Siemens ProductCERTCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
T0814Denial of Service

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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