Foxit PDF Editor/PDF Reader prior 2026.1.1/14.0.4 Data Structure denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Foxit PDF Editor and PDF Reader. Affected by this vulnerability is an unknown functionality of the component Data Structure Handler. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2026-5941. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Foxit PDF Editor and PDF Reader and classified as critical. This vulnerability affects some unknown functionality of the component Data Structure Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed form field hierarchies, leading to invalid memory writes and program crashes during internal data structure construction.

The advisory is shared for download at foxit.com. This vulnerability was named CVE-2026-5941 since 04/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 2026.1.1 or 14.0.4 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Foxit): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PDF Editor/PDF Reader 2026.1.1/14.0.4

Timelineinfo

04/09/2026 CVE reserved
04/27/2026 +18 days Advisory disclosed
04/27/2026 +0 days VulDB entry created
05/07/2026 +10 days VulDB entry last update

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: foxit.com
Status: Confirmed

CVE: CVE-2026-5941 (🔒)
GCVE (CVE): GCVE-0-2026-5941
GCVE (VulDB): GCVE-100-359788

Entryinfo

Created: 04/27/2026 15:14
Updated: 05/07/2026 10:37
Changes: 04/27/2026 15:14 (62), 05/07/2026 10:34 (2), 05/07/2026 10:37 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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