Use after free in Foxit PDF Reader
Priority LOW 39CWE-416Published · Updated
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
A use-after-free vulnerability exists in the JavaScript engine of Foxit Software's Foxit PDF Reader version 9.1.0.5096. A use-after-free condition can occur when accessing the Author property of the this.info object. 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.
Why it matters now
EPSS 0.02361 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Foxit | Foxit PDF Reader | Foxit Software Foxit PDF Reader 9.1.0.5096. | — | No fix listed | CNA |
- Foxit PDF Reader VendorFoxit Affected Foxit Software Foxit PDF Reader 9.1.0.5096. Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* | up to 9.2.0.9297 | Vulnerable | Foxitsoftware |
| cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:* | up to 9.2.0.9297 | Vulnerable | Foxitsoftware |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* Versions up to 9.2.0.9297 Vulnerable ·Foxitsoftware
- cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:* Versions up to 9.2.0.9297 Vulnerable ·Foxitsoftware
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-3959
- 2026-10-03 Alias added: GHSA-vqmq-frhj-qrg2
References
More Foxit vulnerabilities
- TI-2013-06208 Foxit Reader <= 5.4.5.0114 Plugin URL Processing Buffer Overflow CVSS 4.0CRITICAL 9.4
- TI-2009-00795 Stack-based buffer overflow in Foxit Reader 3.0 before Build 1506, including 1120 and… CVSS 2.0HIGH 10.0
- TI-2021-13823 Use after free in Foxit PDF Reader CVSS 3.1HIGH 7.8
- TI-2025-23518 A memory corruption vulnerability exists in Foxit Reader 2025.1.0.27937 due to the use of… CVSS 3.1HIGH 8.8
- TI-2024-33074 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
- TI-2024-32078 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
Sources
- CVE-2018-3959 · CVE Program
- CVE-2018-3959 · NVD
- FIRST EPSS
- GHSA-vqmq-frhj-qrg2 · 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