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TI-2023-16738 Aliases CVE-2023-33866GHSA-gwxm-q3h3-f3mv

Use after free in Foxit Reader

Priority HIGH 73CWE-416Published · Updated

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 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 12.1.2.15332. By prematurely deleting objects associated with pages, a specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00922 60th 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

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FoxitFoxit Reader12.1.2.15332—No fix listedCNA
  • Foxit Reader VendorFoxit Affected 12.1.2.15332 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:foxit:pdf_reader:12.1.2.15332:*:*:*:*:*:*:*12.1.2.15332VulnerableFoxit
  • cpe:2.3:a:foxit:pdf_reader:12.1.2.15332:*:*:*:*:*:*:* Versions 12.1.2.15332 Vulnerable ·Foxit

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-33866
  2. 2026-10-03 Alias added: GHSA-gwxm-q3h3-f3mv

References

Exploit 1

  • TI-2021-13823 Use after free in Foxit PDF Reader CVSS 3.1HIGH 7.8
  • TI-2025-23518 A memory corruption vulnerability exists in Foxit Reader 2025.1.0.27937 due to the use of… CVSS 3.1HIGH 8.8
  • TI-2024-33074 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
  • TI-2024-32078 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
  • TI-2024-19083 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
  • TI-2024-17038 Use after free in Foxit Reader CVSS 3.1HIGH 8.8
See all 372 →

Sources

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