Vulnerability Details : CVE-2021-34953
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.
Vulnerability category: Execute code
Products affected by CVE-2021-34953
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Exploit prediction scoring system (EPSS) score for CVE-2021-34953
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 16 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-34953
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Zero Day Initiative | 2024-05-07 |
CWE ids for CVE-2021-34953
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The code uses a variable that has not been initialized, leading to unpredictable or unintended results.Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2021-34953
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https://www.foxit.com/support/security-bulletins.html
Security Bulletins | Foxit Software
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https://www.zerodayinitiative.com/advisories/ZDI-21-1184/
ZDI-21-1184 | Zero Day Initiative
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