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Foxit PDF Reader CVE-2026-5943

| EUVD-2026-25829 HIGH
Use After Free (CWE-416)
2026-04-27 Foxit
7.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Analysis Updated
Apr 27, 2026 - 12:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 27, 2026 - 12:22 vuln.today
cvss_changed
Analysis Generated
Apr 27, 2026 - 12:01 vuln.today
EUVD ID Assigned
Apr 27, 2026 - 11:30 euvd
EUVD-2026-25829
Analysis Generated
Apr 27, 2026 - 11:30 vuln.today
CVE Published
Apr 27, 2026 - 11:00 nvd
HIGH 7.8

DescriptionNVD

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.

AnalysisAI

Use-after-free in Foxit PDF Reader and Foxit PDF Editor allows local attackers to execute arbitrary code or crash the application via specially crafted PDF documents. When scripts modify document structures, the software fails to maintain valid object references during page information queries, enabling pointer dereference of freed memory. …

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RemediationAI

Within 24 hours: Identify and inventory all Foxit PDF Reader and Foxit PDF Editor deployments across the organization; notify users to avoid opening PDF files from untrusted sources. Within 7 days: Implement application whitelisting to restrict execution of Foxit processes, or disable Foxit scripting features via configuration if available; evaluate alternative PDF readers without this vulnerability. …

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CVE-2026-5943 vulnerability details – vuln.today

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