How severe is CVE-2021-33717?

CVE-2021-33717 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-2021-33717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33717?

CVE-2021-33717 primarily affects Siemens Jt2go. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33717?

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

When was CVE-2021-33717 published?

CVE-2021-33717 was published on 2021-08-10 and last updated on 2026-06-17.

CVE-2021-33717

CVE-2021-33717 is a medium-severity vulnerability in Siemens Jt2go 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Siemens Jt2go
Published: 2021-08-10
Last modified: 2026-06-17

Description

A vulnerability has been identified in JT2Go (All versions < V13.2.0.1), Teamcenter Visualization (All versions < V13.2.0.1). When parsing specially crafted CGM Files, a NULL pointer deference condition could cause the application to crash. The application must be restarted to restore the service. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.

Frequently asked questions

What is CVE-2021-33717?: A vulnerability has been identified in JT2Go (All versions < V13.2.0.1), Teamcenter Visualization (All versions < V13.2.0.1). When parsing specially crafted CGM Files, a NULL pointer deference condition could cause the application to crash. The application must be restarted to restore the service. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.
How severe is CVE-2021-33717?: CVE-2021-33717 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-2021-33717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33717?: CVE-2021-33717 primarily affects Siemens Jt2go. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33717?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33717 published?: CVE-2021-33717 was published on 2021-08-10 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf

Affected products (2)

cpe:2.3:a:siemens:jt2go:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:teamcenter_visualization:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Jt2go

CVE-2020-26996 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions <…
CVE-2020-26995 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions <…
CVE-2020-26994 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions <…
CVE-2020-26991 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0.2), Teamcenter Visualization (All versions <…
CVE-2020-26990 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Teamcenter Visualization (All versions <…
CVE-2020-26988 — High (CVSS 8.8): A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions <…

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Other CWE-476 (NULL Pointer Dereference) vulnerabilities

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CVE-2026-53399 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: nfsd: release layout stid on setlease…
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