Use after free of view cache in Foxit PDF Editor/Reader
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution.
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-2026-3777
- 2026-10-03 Alias added: GHSA-6xgc-8m9r-qvgm
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-2026-3777 · CVE Program
- CVE-2026-3777 · NVD
- FIRST EPSS
- GHSA-6xgc-8m9r-qvgm · 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