PT-2021-20796 · Foxit · Foxit Pdf Reader

Milan Kyselica · Published 2021-10-15 · Updated 2025-08-15 · CVE-2021-34976

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Foxit PDF Reader (affected versions not specified)

Description: This issue allows remote attackers to disclose sensitive information on affected installations. It requires user interaction, such as visiting a malicious page or opening a malicious file. The flaw exists within the handling of PDF files, specifically due to the lack of validation of an object's existence before performing operations on it. This can be leveraged, in conjunction with other issues, to execute arbitrary code in the context of the current process.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-34976

ZDI-21-1207

Affected Products

Foxit Pdf Reader

References · 6

• https://foxit.com/support/security-bulletins.html · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-1207 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34976 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34976 · Security Note
• https://t.me/cveNotify/132538 · Telegram Post
• https://twitter.com/CVEnew/status/1788295943911317785 · Twitter Post