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TI-2021-13352 Aliases CVE-2021-34309GHSA-79w2-wwvg-2jf6

Out-of-bounds write in Siemens JT2Go

Priority LOW 37CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Tiff_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing TIFF files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13350)

Why it matters now

EPSS 0.0166 76th percentileScored 2026-11-07
Fix Fixed JT2Go (Siemens): V13.2Teamcenter Visualization (Siemens): V13.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensJT2Gobefore V13.2V13.2Patch availableCNA
SiemensTeamcenter Visualizationbefore V13.2V13.2Patch availableCNA
  • JT2Go VendorSiemens Affected before V13.2 Fixed in V13.2 Patch available CNA
  • Teamcenter Visualization VendorSiemens Affected before V13.2 Fixed in V13.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:*before 13.2.0VulnerableSiemens
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*before 13.2.0VulnerableSiemens
  • cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:* Versions before 13.2.0 Vulnerable ·Siemens
  • cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:* Versions before 13.2.0 Vulnerable ·Siemens

Remediation

  • Fix · CNA JT2Go (Siemens) Fixed in V13.2
  • Fix · CNA Teamcenter Visualization (Siemens) Fixed in V13.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34309
  2. 2026-10-03 Alias added: GHSA-79w2-wwvg-2jf6

References

Advisory 2

  • TI-2020-16414 NULL pointer dereference in Siemens JT2Go CVSS 3.1HIGH 8.8
  • TI-2020-16413 Type confusion in Siemens JT2Go CVSS 3.1HIGH 8.8
  • TI-2020-16410 Heap-based buffer overflow in Siemens JT2Go CVSS 3.1HIGH 8.8
  • TI-2020-16408 Heap-based buffer overflow in Siemens JT2Go CVSS 3.1HIGH 8.8
  • TI-2020-16419 Out-of-bounds read in Siemens JT2Go CVSS 3.1HIGH 8.8
  • TI-2020-16418 Out-of-bounds write in Siemens JT2Go CVSS 3.1HIGH 8.8
See all 165 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences