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Vulnerability record · CVE-2021-33715 · published 13 July 2021

CVE-2021-33715: Siemens jt utilities null pointer dereference vulnerability

Siemens · Jt Utilities

A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a race condition could cause an object to be released before being operated on, leading to NULL pointer deference condition and causing the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.

5.5 CVSS 3.1 Medium EPSS 0.24% · top 86.5% CWE-476 · NULL pointer dereference
5.5CVSS 3.1 base score, v2 2.1
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a race condition could cause an object to be released before being operated on, leading to NULL pointer deference condition and causing the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-209268.pdf Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-209268.pdf Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-33715), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.