High severity · published Sep 23, 2026
CVE-2026-91794
Foxit PDF Editor/Reader DeviceN Colorspace Out-Of-Bounds Write Remote Code Execution Vulnerability
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
An out-of-bounds write vulnerability exists in the PDF rendering process of Foxit PDF Editor/Reader due to insufficient consistency and boundary validation when processing malformed color space data, which may cause the program to crash and potentially lead to remote 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)0.2% · higher than 13% 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
In the news
VulnerabilityHigh
ZDI-26-730: Foxit PDF Reader DeviceN Colorspace Out-Of-Bounds Write 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-2026-91794.
Sep 23, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91794
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91794
www.foxit.com
https://www.foxit.com/support/security-bulletins.html
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