Stack exhaustion caused by cyclic references in Foxit PDF Editor/Reader
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-674.
Summary
The application does not detect or guard against cyclic PDF object references while handling JavaScript in PDF. When pages and annotations are crafted that reference each other in a loop, passing the document to APIs (e.g., SOAP) that perform deep traversal can cause uncontrolled recursion, stack exhaustion, and application crashes.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor | up to 2025.3; up to 14.0.2; up to 13.2.2 | — | No fix listed | CNA |
| Foxit Software Inc. | Foxit PDF Reader | up to 2025.3 | — | No fix listed | CNA |
- Foxit PDF Editor VendorFoxit Software Inc. Affected up to 2025.3; up to 14.0.2; up to 13.2.2 Fixed in — No fix listed CNA
- Foxit PDF Reader VendorFoxit Software Inc. Affected up to 2025.3 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* | up to 13.2.2.24014; 14.0.0.33046 – 14.0.2.33402; 2023.1.0.15510 – 2023.3.0.23028; 2024.1.0.23997 – 2024.4.1.27687; 2025.1.0.27937 – 2025.3.0.35737 | Vulnerable | Foxit |
| cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* | up to 2025.3.0.35737 | Vulnerable | Foxit |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* | up to 13.2.2.63349; 14.0.0.68868 – 14.0.2.69164; 2023.1.0.55583 – 2023.3.0.63083; 2024.1.0.63682 – 2024.4.1.66479; 2025.1.0.66692 – 2025.3.0.69570 | Vulnerable | Foxit |
| cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* | up to 2025.3.0.69570 | Vulnerable | Foxit |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
- cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* Versions up to 13.2.2.24014; 14.0.0.33046 – 14.0.2.33402; 2023.1.0.15510 – 2023.3.0.23028; 2024.1.0.23997 – 2024.4.1.27687; 2025.1.0.27937 – 2025.3.0.35737 Vulnerable ·Foxit
- cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* Versions up to 2025.3.0.35737 Vulnerable ·Foxit
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* Versions up to 13.2.2.63349; 14.0.0.68868 – 14.0.2.69164; 2023.1.0.55583 – 2023.3.0.63083; 2024.1.0.63682 – 2024.4.1.66479; 2025.1.0.66692 – 2025.3.0.69570 Vulnerable ·Foxit
- cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* Versions up to 2025.3.0.69570 Vulnerable ·Foxit
- cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3778
- 2026-10-03 Alias added: GHSA-hfjq-v5wc-856q
References
More Foxit Software Inc. vulnerabilities
- TI-2011-04633 Foxit PDF Reader < 4.3.1.0218 JavaScript File Write CVSS 4.0HIGH 8.4
- TI-2016-06851 Out-of-bounds read in Foxit Reader CVSS 3.0MEDIUM 6.8
- TI-2018-02932 Use after free in Foxit PDF Reader CVSS 3.1HIGH 7.8
- TI-2018-02965 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8
- TI-2018-02964 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8
- TI-2018-02962 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8
Sources
- CVE-2026-3778 · CVE Program
- CVE-2026-3778 · NVD
- FIRST EPSS
- GHSA-hfjq-v5wc-856q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences