How severe is CVE-2021-31470?

CVE-2021-31470 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-31470 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31470?

CVE-2021-31470 primarily affects Foxitsoftware 3d. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-31470?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-31470 published?

CVE-2021-31470 was published on 2021-05-07 and last updated on 2026-06-17.

CVE-2021-31470

CVE-2021-31470 is a high-severity vulnerability in Foxitsoftware 3d with a CVSS 3.x base score of 7.8. 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-416.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Foxitsoftware 3d
Published: 2021-05-07
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of U3D objects in PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12947.

Frequently asked questions

What is CVE-2021-31470?: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of U3D objects in PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12947.
How severe is CVE-2021-31470?: CVE-2021-31470 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-31470 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31470?: CVE-2021-31470 primarily affects Foxitsoftware 3d. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-31470?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-31470 published?: CVE-2021-31470 was published on 2021-05-07 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:foxitsoftware:3d:*:*:*:*:*:foxit_reader:*:*
cpe:2.3:a:foxitsoftware:3d:*:*:*:*:*:phantompdf:*:*

More vulnerabilities in Foxitsoftware 3d

CVE-2019-20822 — Critical (CVSS 9.8): An issue was discovered in the 3D Plugin Beta for Foxit Reader and PhantomPDF before 9.7.0.29430. It has an…
CVE-2019-6985 — High (CVSS 8.8): An issue was discovered in Foxit 3D Plugin Beta before 9.4.0.16807 for Foxit Reader and PhantomPDF. The application…
CVE-2021-31472 — High (CVSS 7.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader…
CVE-2021-31468 — High (CVSS 7.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader…
CVE-2021-31466 — High (CVSS 7.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader…
CVE-2021-31465 — High (CVSS 7.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader…

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CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
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