CVE-2021-31456

HIGH

Foxit PhantomPDF and Reader - Use-After-Free in Annotation Object Handling

Title source: llm
STIX 2.1

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 Annotation objects. 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-13102.

References (2)

Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://www.foxitsoftware.com/support/security-bulletins.php
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-545/

Scores

CVSS v3 7.8
EPSS 0.0052
EPSS Percentile 67.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (2)
foxitsoftware/phantompdf < 9.7.5.29616
foxitsoftware/reader < 10.1.3.37598
Published May 07, 2021
Tracked Since Feb 18, 2026