TI-2018-02914 Aliases CVE-2018-3946 GHSA-7394-mjwf-pq64

Use after free in Foxit PDF Reader

MEDIUM 44CWE-416Published 2018-10-03 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

Why it matters now

EPSS 0.03155 88th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Foxit Software Inc.	Foxit PDF Reader	9.1.0.5096	—	No fix listed	CNA

Foxit PDF Reader VendorFoxit Software Inc. Affected 9.1.0.5096 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:foxitsoftware:phantompdf::::::::	up to 9.2.0.9297	Vulnerable	Foxitsoftware
cpe:2.3:a:foxitsoftware:reader::::::::	up to 9.2.0.9297	Vulnerable	Foxitsoftware
cpe:2.3:o:microsoft:windows:-:::::::*	not specified by NVD	Running on	Microsoft

cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* Versions up to 9.2.0.9297 Vulnerable ·Foxitsoftware
cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:* Versions up to 9.2.0.9297 Vulnerable ·Foxitsoftware
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-3946
2026-10-03 Alias added: GHSA-7394-mjwf-pq64

References

Exploit 1

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0613

Patch 1

https://www.foxitsoftware.com/support/security-bulletins.php

TI-2011-04633 Foxit PDF Reader < 4.3.1.0218 JavaScript File Write CVSS 4.0HIGH 8.4
TI-2016-06851 Out-of-bounds read in Foxit Reader CVSS 3.0MEDIUM 6.8
TI-2018-02932 Use after free in Foxit PDF Reader CVSS 3.1HIGH 7.8
TI-2018-02965 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8
TI-2018-02964 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8
TI-2018-02962 Use after free in Foxit PDF Reader CVSS 3.1HIGH 8.8

See all 120 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences