CVE-2021-34970

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-34970
Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. 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 implementation of the print method. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14849.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.foxit.com/support/security-bulletins.html Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1201/ Third Party Advisory
https://www.foxit.com/support/security-bulletins.html Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1201/ Third Party Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:11.0.0.49893:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:11.0.1.49938:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
History

13 Aug 2025, 15:59

Type Values Removed Values Added
CPE cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:11.0.1.49938:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:11.0.0.49893:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
References () https://www.foxit.com/support/security-bulletins.html - () https://www.foxit.com/support/security-bulletins.html - Vendor Advisory
References () https://www.zerodayinitiative.com/advisories/ZDI-21-1201/ - () https://www.zerodayinitiative.com/advisories/ZDI-21-1201/ - Third Party Advisory
First Time Microsoft
Microsoft windows
Foxit
Foxit pdf Reader
Foxit pdf Editor
CVSS v2 : unknown
v3 : 3.3 		v2 : unknown
v3 : 5.5
Information

Published : 2024-05-07 23:15

Updated : 2025-08-13 15:59

NVD link : CVE-2021-34970

Mitre link : CVE-2021-34970

CVE.ORG link : CVE-2021-34970

JSON object : View

Products Affected

microsoft

  • windows

foxit

  • pdf_editor
  • pdf_reader
CWE
CWE-134

Use of Externally-Controlled Format String