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Fencer Intel
high 7.8

CVE-2020-26993 json

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

published 5y ago modified 4mo ago also EUVD-2020-19517

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
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 CGM files. This could lead to a stack based buffer overflow while trying to copy to a buffer in the font index handling function. An attacker could leverage this vulnerability to execute code in the context of the current process.

Patch / fix

  • siemens jt2go 13.1.0
  • siemens teamcenter_visualization 13.1.0

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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

1.65% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/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 Intel 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.