CVE-2026-91818: Use After Free (CWE-416) in Foxit Software Inc. Foxit PDF Editor
CVE-2026-91818 is a use-after-free vulnerability in Foxit PDF Editor/Reader related to JavaScript handling of PDF annotations. The flaw occurs when reentrant page-event processing during annotation enumeration releases a page object that is later accessed, causing an application crash. This vulnerability has a high severity rating with a CVSS score of 7.8. No affected versions or patch information are provided.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Foxit PDF Editor/Reader's JavaScript processing of PDF annotations. Specifically, during reentrant page-event processing, the enumeration of annotations may release the associated page object prematurely. Subsequent access to this freed object leads to a crash of the application. The CVSS 3.1 score is 7.8, indicating high impact on confidentiality, integrity, and availability. No details on affected versions or patches are available in the provided data.
Potential Impact
Successful exploitation can cause application crashes, potentially leading to denial of service. The CVSS vector indicates high impact on confidentiality, integrity, and availability, but no active exploits are known in the wild. The vulnerability requires local access (AV:L) and user interaction (UI:R) but no privileges (PR:N).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
CVE-2026-91818: Use After Free (CWE-416) in Foxit Software Inc. Foxit PDF Editor
Description
CVE-2026-91818 is a use-after-free vulnerability in Foxit PDF Editor/Reader related to JavaScript handling of PDF annotations. The flaw occurs when reentrant page-event processing during annotation enumeration releases a page object that is later accessed, causing an application crash. This vulnerability has a high severity rating with a CVSS score of 7.8. No affected versions or patch information are provided.
CVSS v3.1
Score 7.8high
Affected software
Foxit Software Inc.
Foxit PDF Editor
Foxit Software Inc.
Foxit PDF Reader
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Foxit PDF Editor/Reader's JavaScript processing of PDF annotations. Specifically, during reentrant page-event processing, the enumeration of annotations may release the associated page object prematurely. Subsequent access to this freed object leads to a crash of the application. The CVSS 3.1 score is 7.8, indicating high impact on confidentiality, integrity, and availability. No details on affected versions or patches are available in the provided data.
Potential Impact
Successful exploitation can cause application crashes, potentially leading to denial of service. The CVSS vector indicates high impact on confidentiality, integrity, and availability, but no active exploits are known in the wild. The vulnerability requires local access (AV:L) and user interaction (UI:R) but no privileges (PR:N).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-09-15T07:34:48.812Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab387cef7a7c541067c167f
Added to database: 09/23/2026, 08:03:26 UTC
Last enriched: 09/23/2026, 08:17:39 UTC
Last updated: 09/23/2026, 08:55:21 UTC
Views: 7
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