Out-of-bounds read in Siemens JT2Go
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
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)
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-2020-26996
- 2026-10-03 Alias added: GHSA-5p8f-8fm7-qwfr
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-2020-16418 Out-of-bounds write in Siemens JT2Go CVSS 3.1HIGH 8.8
- TI-2020-16411 Out-of-bounds write in Siemens JT2Go CVSS 3.1HIGH 8.8
Sources
- CVE-2020-26996 · CVE Program
- CVE-2020-26996 · NVD
- FIRST EPSS
- GHSA-5p8f-8fm7-qwfr · GitHub Advisory Database · CC BY 4.0
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