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TI-2026-05213 Aliases CVE-2026-5943GHSA-8hgx-6h8v-fcg8

Foxit PDF Editor/Reader AcroForm 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

Document structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00181 7th 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

VendorProductAffected versionsFixed inStatusSource
Foxit Software Inc.Foxit PDF Editorup to 2026.1; up to 14.0.3; up to 13.2.3—No fix listedCNA
Foxit Software Inc.Foxit PDF Readerup to 2026.1—No fix listedCNA
  • Foxit PDF Editor VendorFoxit Software Inc. Affected up to 2026.1; up to 14.0.3; up to 13.2.3 Fixed in — No fix listed CNA
  • Foxit PDF Reader VendorFoxit Software Inc. Affected up to 2026.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*before 13.2.4; 14.0.0 to before 14.0.4; 2023.0.0 to before 2026.1.1VulnerableFoxit
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*before 2026.1.1VulnerableFoxit
  • cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:* Versions before 13.2.4; 14.0.0 to before 14.0.4; 2023.0.0 to before 2026.1.1 Vulnerable ·Foxit
  • cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* Versions before 2026.1.1 Vulnerable ·Foxit

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5943
  2. 2026-10-03 Alias added: GHSA-8hgx-6h8v-fcg8

References

Advisory 1

  • 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
See all 120 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences