High severity · published Sep 23, 2026
CVE-2026-91792
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
When processing a specially crafted PDF, Foxit PDF Editor/Reader may perform reentrant zoom and layout operations through page- and annotation-related JavaScript actions. This can cause the application to access page objects after they have been released, resulting in a use-after-free condition and an application crash.
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 6% 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 2026.2 and earlier; Versions 14.0.7 and earlier; Versions 13.2.6 and earlier · source: vendor
FP
Foxit PDF Reader · Foxit Software Inc.
Versions 2026.2 and earlier · source: vendor
PE
Pdf Editor · Foxit
through 13.2.5.63482; 14.0.0.33046 through 14.0.7.33751; 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; 2026.1.0.36452 through 2026.2.0.39747 · source: NVD
PR
Pdf Reader · Foxit
through 2026.2.0.39747 · source: NVD
In the news
VulnerabilityHigh
ZDI-26-724: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-91792.
Sep 23, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91792
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91792
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
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