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Vulnerability record · CVE-2021-33794 · published 11 August 2021

CVE-2021-33794: Foxitsoftware foxit reader vulnerability

Foxitsoftware · Foxit Reader

Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 allow information disclosure or an application crash after mishandling the Tab key during XFA form interaction.

9.1 CVSS 3.1 Critical EPSS 1.1% · top 35.6%
9.1CVSS 3.1 base score, v2 6.4
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 allow information disclosure or an application crash after mishandling the Tab key during XFA form interaction.

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

Affected products

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

References

LinkTags
https://www.foxitsoftware.com/support/security-bulletins.html PatchVendor Advisory
https://www.foxitsoftware.com/support/security-bulletins.html PatchVendor Advisory

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Related vulnerabilities

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

9.8CVE-2021-38574Foxitsoftware foxit reader sql injection vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows SQL Injection via crafted data at the end of a string.EPSS 0.99%9.8CVE-2021-38568Foxitsoftware foxit reader out-of-bounds write vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows memory corruption during conversion of a PDF document to a different …EPSS 1.1%9.8CVE-2021-38572Foxitsoftware foxit reader vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because the extractPages pathname is not v…EPSS 1.1%9.8CVE-2021-38573Foxitsoftware foxit reader vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows writing to arbitrary files because a CombineFiles pathname is not val…EPSS 1.1%9.8CVE-2021-33793Foxitsoftware foxit reader out-of-bounds write vulnerabilityFoxit Reader before 10.1.4 and PhantomPDF before 10.1.4 have an out-of-bounds write because the Cross-Reference table is mishandled during Office doc…EPSS 1.1%9.8CVE-2020-26534Foxitsoftware foxit reader use after free vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is an Opt object use-after-free related to Field::ClearItems and Field::Del…EPSS 2.4%9.8CVE-2020-26535Foxitsoftware foxit reader out-of-bounds write vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1. If TslAlloc attempts to allocate thread local storage but obtains an unacceptable…EPSS 1.7%9.8CVE-2020-26537Foxitsoftware foxit reader out-of-bounds write vulnerabilityAn issue was discovered in Foxit Reader and PhantomPDF before 10.1. In a certain Shading calculation, the number of outputs is unequal to the number …EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2021-33794), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.