CVE-2021-44450

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% 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-125

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 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

How to fix

Upgrade to a fixed version: Siemens Jt Open Toolkit 10.8.8.1; Siemens JT Utilities 12.8.8.1. Check the vendor advisory for mitigations.

References

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