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CVE-2021-34951

3.3 · LOW

Foxit PDF Reader Annotation Use of Uninitialized Variable Information Disclosure Vulnerability.

Published May 7, 2024CWE-457EPSS 0.32%

Overview

CVE-2021-34951 is a low-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.0 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Foxit PDF Reader Annotation Use of Uninitialized Variable 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 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 in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14395.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.foxit.com/support/security-bulletins.htmlRefwww.zerodayinitiative.com/advisories/ZDI-21-1182/Refwww.foxit.com/support/security-bulletins.htmlRefwww.zerodayinitiative.com/advisories/ZDI-21-1182/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-34951?

CVE-2021-34951 is a low-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.0 base score of 3.3 (LOW).

How severe is CVE-2021-34951?

This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-34951?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-34951?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-34951 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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