Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Priority LOW 35CWE-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 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution condition involving JavaScript triggered by page-visibility events. This can cause the application to access a released page-view object while calculating annotation boundaries, resulting in an invalid memory read and application crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00185 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 2026.2; up to 14.0.7; up to 13.2.6 | — | No fix listed | CNA |
| Foxit Software Inc. | Foxit PDF Reader | up to 2026.2 | — | No fix listed | CNA |
- Foxit PDF Editor VendorFoxit Software Inc. Affected up to 2026.2; up to 14.0.7; up to 13.2.6 Fixed in — No fix listed CNA
- Foxit PDF Reader VendorFoxit Software Inc. Affected up to 2026.2 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* | up to 13.2.5.63482; 14.0.0.33046 – 14.0.7.33751; 2023.1.0.15510 – 2023.3.0.23028; 2024.1.0.23997 – 2024.4.1.27687; 2025.1.0.27937 – 2025.3.0.35737; 2026.1.0.36452 – 2026.2.0.39747 | Vulnerable | Foxit |
| cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* | up to 2026.2.0.39747 | Vulnerable | Foxit |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* Versions up to 13.2.5.63482; 14.0.0.33046 – 14.0.7.33751; 2023.1.0.15510 – 2023.3.0.23028; 2024.1.0.23997 – 2024.4.1.27687; 2025.1.0.27937 – 2025.3.0.35737; 2026.1.0.36452 – 2026.2.0.39747 Vulnerable ·Foxit
- cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* Versions up to 2026.2.0.39747 Vulnerable ·Foxit
- 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-2026-91791
- 2026-10-03 Alias added: GHSA-3595-pphf-q59v
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-2026-91791 · CVE Program
- CVE-2026-91791 · NVD
- FIRST EPSS
- GHSA-3595-pphf-q59v · 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