CVE-2026-5942: CWE-416 Use after free in Foxit Software Inc. Foxit PDF Editor
CVE-2026-5942 is a use-after-free vulnerability in Foxit PDF Editor affecting versions 2026.1 and earlier, 14.0.3 and earlier, and 13.2.3 and earlier. The flaw arises from improper page lifecycle management, which causes document structure changes to desynchronize internal component states. This desynchronization leads to subsequent operations accessing invalidated objects, resulting in application crashes. The vulnerability has a CVSS 3.1 base score of 5.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-5942) in Foxit PDF Editor involves a use-after-free condition (CWE-416) caused by flaws in page lifecycle management. Changes to the document structure can cause internal component states to become desynchronized, leading to attempts to access freed memory objects. This results in application crashes, impacting availability but not confidentiality or integrity. The issue affects multiple versions of Foxit PDF Editor, including 2026.1 and earlier, 14.0.3 and earlier, and 13.2.3 and earlier. The product is delivered as a cloud service, and the vendor has made a patch available. No active exploitation has been reported.
Potential Impact
The vulnerability can cause the Foxit PDF Editor application to crash due to use-after-free memory access, impacting availability. There is no indication of confidentiality or integrity compromise. No known exploits are currently active in the wild.
Mitigation Recommendations
A patch is available from the vendor for this vulnerability. Since Foxit PDF Editor is offered as a cloud service, the vendor typically manages remediation server-side. Users should verify with Foxit's official advisory and ensure their environment is updated to the patched version to prevent potential crashes related to this issue.
CVE-2026-5942: CWE-416 Use after free in Foxit Software Inc. Foxit PDF Editor
Description
CVE-2026-5942 is a use-after-free vulnerability in Foxit PDF Editor affecting versions 2026.1 and earlier, 14.0.3 and earlier, and 13.2.3 and earlier. The flaw arises from improper page lifecycle management, which causes document structure changes to desynchronize internal component states. This desynchronization leads to subsequent operations accessing invalidated objects, resulting in application crashes. The vulnerability has a CVSS 3.1 base score of 5.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-5942) in Foxit PDF Editor involves a use-after-free condition (CWE-416) caused by flaws in page lifecycle management. Changes to the document structure can cause internal component states to become desynchronized, leading to attempts to access freed memory objects. This results in application crashes, impacting availability but not confidentiality or integrity. The issue affects multiple versions of Foxit PDF Editor, including 2026.1 and earlier, 14.0.3 and earlier, and 13.2.3 and earlier. The product is delivered as a cloud service, and the vendor has made a patch available. No active exploitation has been reported.
Potential Impact
The vulnerability can cause the Foxit PDF Editor application to crash due to use-after-free memory access, impacting availability. There is no indication of confidentiality or integrity compromise. No known exploits are currently active in the wild.
Mitigation Recommendations
A patch is available from the vendor for this vulnerability. Since Foxit PDF Editor is offered as a cloud service, the vendor typically manages remediation server-side. Users should verify with Foxit's official advisory and ensure their environment is updated to the patched version to prevent potential crashes related to this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-04-09T03:42:17.871Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 69ef48cfba26a39fba1d6dc8
Added to database: 4/27/2026, 11:30:23 AM
Last enriched: 5/26/2026, 8:05:24 PM
Last updated: 6/11/2026, 6:29:18 PM
Views: 60
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.