How severe is CVE-2021-33713?

CVE-2021-33713 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-33713 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33713?

CVE-2021-33713 affects Siemens Jt Utilities. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33713?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-33713 published?

CVE-2021-33713 was published on 2021-07-13 and last updated on 2026-06-17.

CVE-2021-33713

CVE-2021-33713 is a medium-severity vulnerability in Siemens Jt Utilities with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-688.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-688
Affected product: Siemens Jt Utilities
Published: 2021-07-13
Last modified: 2026-06-17

Description

A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a hash function is called with an incorrect argument leading the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.

Frequently asked questions

What is CVE-2021-33713?: A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a hash function is called with an incorrect argument leading the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.
How severe is CVE-2021-33713?: CVE-2021-33713 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-33713 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33713?: CVE-2021-33713 affects Siemens Jt Utilities. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33713?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33713 published?: CVE-2021-33713 was published on 2021-07-13 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:siemens:jt_utilities:*:*:*:*:*:*:*:*

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