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Fencer Intel
high 8.8

CVE-2020-26991 json

A vulnerability has been identified in JT2Go (All versions < V13.1.0.2), Teamcenter Visualization (All versions < V13.1.0.2).

published 5y ago modified 4mo ago also EUVD-2020-19515

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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)

Patch / fix

  • siemens jt2go 13.1.0.2
  • siemens teamcenter_visualization 13.1.0.2

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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-21-040-06 updated cvss 7.8

ICSA-21-040-06_Siemens JT2Go and Teamcenter Visualization (Update A)

  • Siemens JT2Go <V13.1.0.2
    affected: fixed in V13.1.0.2, mitigation plm.automation.siemens.com
  • Siemens Teamcenter Visualization <V13.1.0.2
    affected: fixed in V13.1.0.2, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-21-147-04 updated cvss 7.8

Siemens JT2Go and Teamcenter Visualization

  • Siemens JT2Go < V13.1.0.2
    affected: fixed in V13.1.0.2, mitigation “Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization” plm.automation.siemens.com
  • Siemens Teamcenter Visualization < V13.1.0.2
    affected: fixed in V13.1.0.2, mitigation “Avoid to open untrusted files from unknown sources in JT2Go and Teamcenter Visualization”

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

4.16% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

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
  • CWE-822 Untrusted Pointer Dereference
  • CWE-476 NULL Pointer Dereference

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.