CVE-2022-36363Network attack vector

Memory disclosure via unchecked TCP offset

Published Oct 11, 2022 · Updated Oct 8, 2024

Improper offset validation in Siemens LOGO! 8 BM and SIPLUS variants allows remote attackers to read device memory via TCP packets. A device method accepts an attacker-controlled offset from a TCP packet without checking that the requested position stays within the intended memory region. Siemens does not identify the method; no authentication or user interaction is required, and the reported consequence is read-only disclosure.

CVSS severity5.3
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper offset validation in Siemens LOGO! 8 BM and SIPLUS variants allows remote attackers to read device memory via TCP packets. A device method accepts an attacker-controlled offset from a TCP packet without checking that the requested position stays within the intended memory region. Siemens does not identify the method; no authentication or user interaction is required, and the reported consequence is read-only disclosure.

The record

CVE
CVE-2022-36363
Published
Oct 11, 2022
Updated
Oct 8, 2024
Vendor
Siemens
Product
SIPLUS LOGO! 24RCEo
Classifications
CWE-1285, CWE-20
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2022CVE 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

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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 vectornetwork
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

5.3Siemens AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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 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-1285Improper Validation of Specified Index, Position, or Offset in Input
CWE-20Improper Input Validation

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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