CVE-2021-40357Network attack vector

Host-internal service access via path traversal

Published Sep 14, 2021 · Updated Aug 4, 2024

Path traversal in Siemens Teamcenter Active Workspace allows remote authenticated users to access services within the application host. Siemens has not disclosed the affected endpoint or the path-validation operation that resolves crafted traversal input beyond its intended restriction. Administrative application privileges are required; affected branches are 4.3 before 4.3.10, 5.0 before 5.0.8, 5.1 before 5.1.5, and 5.2 before 5.2.1, with impact limited to reaching otherwise restricted host-internal services.

CVSS severity4.9
Medium
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Siemens Teamcenter Active Workspace allows remote authenticated users to access services within the application host. Siemens has not disclosed the affected endpoint or the path-validation operation that resolves crafted traversal input beyond its intended restriction. Administrative application privileges are required; affected branches are 4.3 before 4.3.10, 5.0 before 5.0.8, 5.1 before 5.1.5, and 5.2 before 5.2.1, with impact limited to reaching otherwise restricted host-internal services.

The record

CVE
CVE-2021-40357
Published
Sep 14, 2021
Updated
Aug 4, 2024
Vendor
Siemens
Product
Teamcenter Active Workspace
Classifications
CWE-22
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=All versions < V4.3.10
  2. Affected versionversion=All versions < V5.0.8
  3. Affected versionversion=All versions < V5.1.5
  4. Affected versionversion=All versions < V5.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Siemens · Teamcenter Active Workspaceversion=All versions < V4.3.10; version=All versions < V5.0.8; version=All versions < V5.1.5; version=All versions < V5.2.1

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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