CVE-2018-3943
Quick assessment
Affected
Foxit Foxit PDF Reader
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Foxit PDF Reader是中国福昕（Foxit）软件公司的一款PDF文档阅读器。JavaScript engine是其中的一个JavaScript脚本引擎。 Foxit PDF Reader 9.2.0.9297及之前版本中的JavaScript引擎存在释放后重用漏洞。远程攻击者可借助特制的PDF文档利用该漏洞执行任意代码。
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I. Basic Information for CVE-2018-3943
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Foxit PDF Reader JavaScript引擎安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foxit PDF Reader是中国福昕（Foxit）软件公司的一款PDF文档阅读器。JavaScript engine是其中的一个JavaScript脚本引擎。 Foxit PDF Reader 9.2.0.9297及之前版本中的JavaScript引擎存在释放后重用漏洞。远程攻击者可借助特制的PDF文档利用该漏洞执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Foxit | Foxit PDF Reader | Foxit Software PDF Reader 9.1.0.5096. | - |
|
II. Public POCs for CVE-2018-3943
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2018-3943 (1)
Other References for CVE-2018-3943 (1)
-
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0610 x_refsource_MISC
Same Patch Batch · Foxit · 2018-10-02 · 8 CVEs total
| CVE-2018-3944 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3957 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3958 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3959 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3960 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3961 | Foxit PDF Reader JavaScript引擎安全漏洞 | |
| CVE-2018-3962 | Foxit PDF Reader JavaScript引擎安全漏洞 |
IV. Related Vulnerabilities
Same product: Foxit PDF Reader
-
CVE-2026-3780
Foxit PDF Editor/Reader Installer Uncontrolled Search Path P -
CVE-2025-66499
Foxit PDF Reader PDF Parsing Heap-Based Buffer Overflow Remo -
CVE-2025-66498
Foxit PDF Reader 3D Annotation Out-of-Bounds Memory Access V -
CVE-2025-66497
Foxit PDF Reader 3D Annotation Out-of-Bounds Memory Access V -
CVE-2025-66496
Foxit PDF Reader 3D Annotation Out-of-Bounds Memory Access V
Same vendor: Foxit
-
CVE-2025-9330
Foxit PDF Reader Update Service Uncontrolled Search Path Ele -
CVE-2025-9323
Foxit PDF Reader JP2 File Parsing Out-Of-Bounds Read Informa -
CVE-2025-9324
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Informa -
CVE-2025-9325
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Informa -
CVE-2025-9326
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Remote
V. Comments for CVE-2018-3943
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