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Fencer Vulns
medium 5.5

CVE-2021-33715 json

A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0).

published 2021-07-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20392

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

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.

Patch / fix

  • siemens jt_utilities 13.0.2.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-194-09 updated cvss 5.5

Siemens JT Utilities

  • Siemens JT Utilities <V13.0.2.0
    affected: fixed in V13.0.2.0, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Siemens JT Utilities

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.