CVE-2023-27403

Code execution via out-of-bounds SPP read

Published Mar 14, 2023 · Updated Feb 27, 2025

Memory corruption in Tecnomatix Plant Simulation before 2201.0006 allows remote attackers to execute code through a crafted SPP file. The SPP parser fails to validate user-supplied data before reading beyond the end of an allocated data structure. Exploitation requires a user to visit a malicious page or open the file, and code runs in the current process.

CVSS severity7.8
High
EPSS probability0.22%
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 Tecnomatix Plant Simulation before 2201.0006 allows remote attackers to execute code through a crafted SPP file. The SPP parser fails to validate user-supplied data before reading beyond the end of an allocated data structure. Exploitation requires a user to visit a malicious page or open the file, and code runs in the current process.

The record

CVE
CVE-2023-27403
Published
Mar 14, 2023
Updated
Feb 27, 2025
Vendor
Siemens
Product
Tecnomatix Plant Simulation
Classifications
CWE-119, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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?

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

  1. Affected versionversion=All versions < V2201.0006

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · Tecnomatix Plant Simulationversion=All versions < V2201.0006

Published CVSS scores

7.8Siemens AGCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File
T1203Exploitation for Client Execution

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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