CVE-2021-34953
moderate-risk
Published 2024-05-07
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. 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.
Do I need to act?
~
2.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10
High
LOCAL
/ LOW complexity
Affected Products (4)
Affected Vendors
References (4)
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1184/
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1184/
39
/ 100
moderate-risk
Severity
24/34 · High
Exploitability
5/34 · Minimal
Exposure
10/34 · Low