CVE-2021-34953

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

07/05/2024

Last modified:

13/08/2025

Description

Foxit PDF Reader Annotation Use of Uninitialized Variable Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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.<br /> <br /> The specific flaw exists within the handling of Annotation objects. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14658.

Impact

Vector 3.x

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:foxit:pdf_editor::::::::		10.1.5.37672 (including)
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::::::::		11.0.1.49938 (including)
cpe:2.3:o:microsoft:windows:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-34953

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools