CVE-2020-26991

mediumpriority · track · 36EPSS 0.042 · 91 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
4.16% (91st) EPSS
CVSS 6.8 · medium
Is it mine?
8 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in JT2Go (All versions < V13.1.0.2), Teamcenter Visualization (All versions < V13.1.0.2). Affected applications lack proper validation of user-supplied data when parsing ASM files. This could lead to pointer dereferences of a value obtained from untrusted source. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-11899)

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedJT2Gosiemens_psirt

    Update to V13.1.0.2 or later version

    https://www.plm.automation.siemens.com/global/en/products/plm-components/jt2go.html
  • FixedTeamcenter Visualizationsiemens_psirt

    Update to V13.1.0.2 or later version

  • FixedJT2Gocisa_csaf_ot

    Update to V13.1.0.2 or later version

    https://www.plm.automation.siemens.com/global/en/products/plm-components/jt2go.html
  • FixedTeamcenter Visualizationcisa_csaf_ot

    Update to V13.1.0.2 or later version

  • 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

  • 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

  • MitigationJT2Gocisa_csaf_ot

    As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

  • MitigationTeamcenter Visualizationcisa_csaf_ot

    As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

02

cvss

Technical severity, 0–10. One row per scoring source.

8.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USCWE-822USCWE-822USCWE-822US
04

affected products (8)

Products and version ranges known to be affected.

05

advisories (3)

Vendor and ecosystem advisories describing this.

  • SSA-695540SSA-695540: ASM and PAR File Parsing Vulnerabilities in JT2Go and Teamcenter Visualization before V13.1.0.22021-05-17csaf · siemens_psirtDE

    Siemens has released version V13.1.0.2 for JT2Go and Teamcenter Visualization to fix multiple vulnerabilities that could be triggered when the products read files in ASM and PAR file formats. If a user is tricked to opening of a malicious file with the affected products, this could lead to application crash, or potentially arbitrary code execution or data extraction on the target host system. Siemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products.

  • ICSA-21-040-06ICSA-21-040-06_Siemens JT2Go and Teamcenter Visualization (Update A)2021-05-17icsa · cisa_csaf_otUS

    Siemens has released version V13.1.0.2 for JT2Go and Teamcenter Visualization to fix multiple vulnerabilities that could be triggered when the products read files in ASM and PAR file formats. If a user is tricked to opening of a malicious file with the affected products, this could lead to application crash, or potentially arbitrary code execution or data extraction on the target host system. Siemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products.

  • ICSA-21-147-04Siemens JT2Go and Teamcenter Visualization2021-05-27icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities could lead to arbitrary code execution or information leakage.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdsiemens_psirtNVDCVE.orgMITRE
published 2021-01-12modified 2026-06-17
08

references (19)

External citations — patches, advisories, analysis.

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