Foxit PDF Editor/PDF Reader prior 2026.1.1/14.0.4 Page Information Query use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Foxit PDF Editor and PDF Reader and classified as critical. Affected by this issue is some unknown functionality of the component Page Information Query Handler. The manipulation leads to use after free. This vulnerability is traded as CVE-2026-5943. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Foxit PDF Editor and PDF Reader and classified as critical. This issue affects an unknown part of the component Page Information Query Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at foxit.com. The identification of this vulnerability is CVE-2026-5943 since 04/09/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 310407 (Foxit PDF Editor < 13.2.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2026.1.1 or 14.0.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (310407) and EUVD (EUVD-2026-25829). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

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

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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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Nessus ID: 310407
Nessus Name: Foxit PDF Editor < 13.2.4 Multiple Vulnerabilities

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-2026-5943 (🔒)
GCVE (CVE): GCVE-0-2026-5943
GCVE (VulDB): GCVE-100-359789
EUVD: 🔒

Entryinfo

Created: 04/27/2026 15:14
Updated: 05/07/2026 10:34
Changes: 04/27/2026 15:14 (62), 04/27/2026 16:31 (1), 04/27/2026 22:39 (2), 05/07/2026 10:31 (2), 05/07/2026 10:34 (4)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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