CVE-2020-26996 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-2020-19520
- 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 CG4 files. This could result in a memory access past the end of an allocated buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12027)
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
-
- CWE-125 Out-of-bounds Read
References
-
cert-portal.siemens.com
/productcert/pdf/ssa-622830.pdf
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-062/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-26996
- NVD CVE-2020-26996
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.