Out-of-bounds write in Siemens JT2Go
Key facts
- Attack vector
- Network
- 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 < V13.1.0), 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)
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | JT2Go | before V13.1.0 | V13.1.0 | Patch available | CNA |
| Siemens | Teamcenter Visualization | before V13.1.0 | V13.1.0 | Patch available | CNA |
Remediation
- Fix · CNA JT2Go (Siemens) Fixed in V13.1.0
- Fix · CNA Teamcenter Visualization (Siemens) Fixed in V13.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26984
- 2026-10-03 Alias added: GHSA-4qr3-ph4h-wwpf
References
More Siemens Jt2go vulnerabilities
- 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
Sources
- CVE-2020-26984 · CVE Program
- CVE-2020-26984 · NVD
- FIRST EPSS
- GHSA-4qr3-ph4h-wwpf · GitHub Advisory Database · CC BY 4.0
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