CVE-2026-3779— Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability
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I. Basic Information for CVE-2026-3779
Vulnerability Information
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Vulnerability Title
Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Foxit PDF Reader和Foxit PDF Editor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foxit PDF Reader和Foxit PDF Editor都是中国福昕（Foxit）公司的产品。Foxit PDF Reader是一款PDF阅读器。Foxit PDF Editor是一款PDF编辑器。 Foxit PDF Reader和Foxit PDF Editor存在安全漏洞，该漏洞源于列表框计算数组逻辑在页面或表单对象被删除或重新创建后仍保留过时引用，可能导致特制文档在计算运行时触发释放后重用，并可能允许任意代码执行。
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 Software Inc. | Foxit PDF Editor | Versions 2025.3 and earlier | - | |
| Foxit Software Inc. | Foxit PDF Reader | Versions 2025.3 and earlier | - |
II. Public POCs for CVE-2026-3779
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Foxit Software Inc. · 2026-04-01 · 8 CVEs total
| CVE-2026-3775 | 7.8 HIGH | Foxit PDF Editor/Reader Update Service Uncontrolled Search Path Element Local Privilege Es |
| CVE-2026-3780 | 7.3 HIGH | Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation |
| CVE-2026-4947 | 7.1 HIGH | Insecure Direct Object Reference (IDOR) Leading to Signature Forgery in Foxit eSign |
| CVE-2026-3778 | 6.2 MEDIUM | Stack exhaustion caused by cyclic references in Foxit PDF Editor/Reader |
| CVE-2026-3776 | 5.5 MEDIUM | Null pointer dereference in Foxit PDF Editor/Reader when accessing stamp annotation |
| CVE-2026-3777 | 5.5 MEDIUM | Use after free of view cache in Foxit PDF Editor/Reader |
| CVE-2026-3774 | 4.7 MEDIUM | Self-Modifications Affecting Altered Printing and Redaction in Foxit PDF Editor |
IV. Related Vulnerabilities
Same product: Foxit PDF Editor
- CVE-2026-5937
Foxit PDF Editor/Reader's insufficient parameter validation - CVE-2026-5938
Foxit PDF Editor/Reader Infinite Loop Denial-of-Service Vuln - CVE-2026-5940
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Cod - CVE-2026-5942
Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vu - CVE-2026-5943
Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free R
Same vendor: Foxit Software Inc.
- CVE-2026-5937
Foxit PDF Editor/Reader's insufficient parameter validation - CVE-2026-5938
Foxit PDF Editor/Reader Infinite Loop Denial-of-Service Vuln - CVE-2026-5940
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Cod - CVE-2026-5942
Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vu - CVE-2026-5943
Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free R
V. Comments for CVE-2026-3779
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