High severity · published Apr 1, 2026
CVE-2026-3779
Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FP
Foxit PDF Editor · Foxit Software Inc.
Versions 2025.3 and earlier; Versions 14.0.2 and earlier; Versions 13.2.2 and earlier · source: vendor
FP
Foxit PDF Reader · Foxit Software Inc.
Versions 2025.3 and earlier · source: vendor
PE
Pdf Editor · Foxit
through 13.2.2.24014; 14.0.0.33046 through 14.0.2.33402; 2023.1.0.15510 through 2023.3.0.23028; 2024.1.0.23997 through 2024.4.1.27687; 2025.1.0.27937 through 2025.3.0.35737; through 13.2.2.63349; +4 more · source: NVD
PR
Pdf Reader · Foxit
through 2025.3.0.35737; through 2025.3.0.69570 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3779
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
Exploit
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365
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