CVE-2020-25236

Device crash via manipulated control logic

Published Mar 15, 2021 · Updated Oct 8, 2024

Denial of service in Siemens LOGO! 8 BM and SIPLUS LOGO! 8 BM devices allows attackers to crash hardware via a malicious project file. A user-loaded project manipulates the executed control logic so the device improperly handles it and crashes. Exploitation requires a user to load the project, and the service interruption persists until a manual reset.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Siemens LOGO! 8 BM and SIPLUS LOGO! 8 BM devices allows attackers to crash hardware via a malicious project file. A user-loaded project manipulates the executed control logic so the device improperly handles it and crashes. Exploitation requires a user to load the project, and the service interruption persists until a manual reset.

The record

CVE
CVE-2020-25236
Published
Mar 15, 2021
Updated
Oct 8, 2024
Vendor
Siemens
Product
SIPLUS LOGO! 24RCEo
Classifications
CWE-755, T0814
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2024Record 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 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · SIPLUS LOGO! 24RCEoversion=0 <*
Siemens · LOGO! 24CEversion=0 <*
Siemens · SIPLUS LOGO! 24CEversion=0 <*
Siemens · LOGO! 24CEoversion=0 <*
Siemens · LOGO! 12/24RCEversion=0 <*
Siemens · LOGO! 12/24RCEoversion=0 <*
Siemens · LOGO! 24RCEversion=0 <*
Siemens · SIPLUS LOGO! 24CEoversion=0 <*
Siemens · LOGO! 24RCEoversion=0 <*
Siemens · LOGO! 230RCEversion=0 <*
Siemens · SIPLUS LOGO! 24RCEversion=0 <*
Siemens · SIPLUS LOGO! 230RCEoversion=0 <*
Siemens · SIPLUS LOGO! 12/24RCEversion=0 <*
Siemens · LOGO! 230RCEoversion=0 <*
Siemens · SIPLUS LOGO! 230RCEversion=0 <*
Siemens · SIPLUS LOGO! 12/24RCEoversion=0 <*

Published CVSS scores

5.5Siemens AGCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:C

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-755Improper Handling of 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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