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Fencer Vulns
high 8.8

CVE-2020-26984 json

A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0).

published 2021-01-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19508

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applications lack proper validation of user-supplied data when parsing of JT 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-11972)

Patch / fix

  • siemens jt2go 13.1.0
  • siemens teamcenter_visualization 13.1.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-012-03 updated cvss 7.8

Siemens JT2Go and Teamcenter Visualization (Update B)

  • Siemens JT2Go < 13.1.0, 13.1.0 (Only affected by CVE-2020-26989 CVE-2020-26990 CVE-2020-26991) Siemens Teamcenter Visualization < 13.1.0, 13.1.0 (Only affected by CVE-2020-26989 CVE-2020-26990 CVE-2020-26991)
    affected: vendor fix siemens.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

3.21% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Siemens JT2Go
  • Siemens Teamcenter Visualization

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.