CVE-2021-44450: Siemens Jt Open Toolkit

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in JT Utilities (All versions < V12.8.1.1), JTTK (All versions < V10.8.1.1). JTTK library in affected products is vulnerable to an out of bounds read past the end of an allocated buffer when parsing JT files. An attacker could leverage this vulnerability to leak information in the context of the current process. (ZDI-CAN-15055, ZDI-CAN-14915, ZDI-CAN-14865)

Affected products

• Siemens Jt Open Toolkit: before 10.8.8.1 (fixed in 10.8.8.1)
• Siemens Jt Utilities: before 12.8.8.1 (fixed in 12.8.8.1)

Published 2021-12-14. Last modified 2026-06-17.