CVE-2021-32946
mediumpriority · track · 32EPSS 0.028 · 86 %ileDEEUUSEPSS · scored 2026-10-27
An improper check for unusual or exceptional conditions issue exists within the parsing DGN files from Drawings SDK (Version 2022.4 and prior) resulting from the lack of proper validation of the user-supplied data. This may result in several of out-of-bounds problems and allow attackers to cause a denial-of-service condition or execute code in the context of the current process.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCOMOSsiemens_psirt
Update to V10.4.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805632/ - FixedJT2Gosiemens_psirt
Update to V13.2.0.2 or later version
https://www.plm.automation.siemens.com/global/en/products/plm-components/jt2go.html - FixedTeamcenter Visualizationsiemens_psirt
Update to V13.2.0.2 or later version
- FixedJT2Gocisa_csaf_ot
Update to V13.2.0.2 or later version
https://www.plm.automation.siemens.com/global/en/products/plm-components/jt2go.html - FixedTeamcenter Visualizationcisa_csaf_ot
Update to V13.2.0.2 or later version
- FixedCOMOScisa_csaf_ot
Update to V10.4.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805632/ - MitigationCOMOSsiemens_psirt
Avoid to open untrusted files from unknown sources in COMOS
- MitigationJT2Gosiemens_psirt
Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization
- MitigationTeamcenter Visualizationsiemens_psirt
Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization
- MitigationDrawings SDKcisa_csaf_ot
Open Design Alliance recommends updating to v2022.5 or later (login and ODA membership required).
https://docs.opendesign.com/td/frames.html?frmname=topic&frmfile=MovingToNewVersion.html - MitigationJT2Gocisa_csaf_ot
Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization
- MitigationTeamcenter Visualizationcisa_csaf_ot
Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization
- MitigationCOMOScisa_csaf_ot
Avoid to open untrusted files from unknown sources in COMOS
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
- siemens teamcenter visualization< 13.2.0.2nvdUScpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*
advisories (5)
Vendor and ecosystem advisories describing this.
- SSA-155599SSA-155599: File Parsing Vulnerabilities in COMOS2022-03-08csaf · siemens_psirtDE
COMOS uses Drawings SDK from Open Design Alliance that is affected by multiple vulnerabilities that could be triggered when the application reads files in DGN, DXF or DWG file formats. If a user is tricked to open a malicious file with the affected application, an attacker could leverage the vulnerability to leak information or potentially perform remote code execution in the context of the current process. Siemens has released an update for the COMOS and recommends to update to the latest version.
- SSA-938030SSA-938030: DGN and PAR File Parsing Vulnerabilities in JT2Go and Teamcenter Visualization before V13.2.0.22021-08-10csaf · siemens_psirtDE
Siemens has released version V13.2.0.2 for JT2Go and Teamcenter Visualization to fix three vulnerabilities that could be triggered while parsing DGN or PAR files. If a user is tricked to open a malicious file with the affected products, this could lead the application to crash or potential arbitrary code execution. Siemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products. Note: - This advisory also covers security vulnerabilities recently disclosed by Open Design Alliance [0] [0] https://www.opendesign.com/security-advisories
- ICSA-21-159-02Open Design Alliance Drawings SDK2021-06-08icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities may allow code execution in the context of the current process or cause a denial-of-service condition.
- ICSA-21-222-03Siemens JT2Go and Teamcenter Visualization (Update A)2021-08-10icsa · cisa_csaf_otUS
Siemens has released version V13.2.0.2 for JT2Go and Teamcenter Visualization to fix three vulnerabilities that could be triggered while parsing DGN or PAR files. If a user is tricked to open a malicious file with the affected products, this could lead the application to crash or potential arbitrary code execution. Siemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products. Note: - This advisory also covers security vulnerabilities recently disclosed by Open Design Alliance [0] [0] https://www.opendesign.com/security-advisories
- ICSA-22-069-06Siemens COMOS2022-03-08icsa · cisa_csaf_otUS
COMOS uses Drawings SDK from Open Design Alliance that is affected by multiple vulnerabilities that could be triggered when the application reads files in DGN, DXF or DWG file formats. If a user is tricked to open a malicious file with the affected application, an attacker could leverage the vulnerability to leak information or potentially perform remote code execution in the context of the current process. Siemens has released an update for the COMOS and recommends to update to the latest version.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (24)
External citations — patches, advisories, analysis.
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfcnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-938030.pdfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-32946cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-21-222-03cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-22-069-06cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2046cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2702cnnvd
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