High severity · published Apr 27, 2026
CVE-2026-5943
Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free Remote Code Execution Vulnerability
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
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)0.2% · higher than 8% 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 2026.1 and earlier; Versions 14.0.3 and earlier; Versions 13.2.3 and earlier · source: vendor
FP
Foxit PDF Reader · Foxit Software Inc.
Versions 2026.1 and earlier · source: vendor
PE
Pdf Editor · Foxit
before 13.2.4; 14.0.0 before 14.0.4; 2023.0.0 before 2026.1.1 · source: NVD
PR
Pdf Reader · Foxit
before 2026.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5943
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
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