CVE-2021-44449

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-14 · updated 2026-06-17
Weakness: CWE-787

Description

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 contains an out of bounds write past the end of an allocated structure while parsing specially crafted JT files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14830)

Affected products

Siemens Jt Open Toolkit: before 10.8.1.1 — fixed in 10.8.1.1
Siemens JT Utilities: before 12.8.1.1 — fixed in 12.8.1.1

How to fix

Upgrade to a fixed version: Siemens Jt Open Toolkit 10.8.1.1; Siemens JT Utilities 12.8.1.1. Check the vendor advisory for mitigations.

References

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