CVE-2023-33876 - CVE House
Back to Database
Status published High CVE-2023-33876

A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332...

Vulnerability Description

A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. Specially crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object, which can lead to memory corruption and result in 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-33876

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Discovered by Kamlapati Choubey and Aleksandar Nikolic of Cisco Talos.

References

More from Foxit

View All →
CVE-2025-9330
Foxit PDF Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability
High 7.8
CVE-2025-9329
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
High 7.8
CVE-2025-9328
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
High 7.8
CVE-2025-9327
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
Low 3.3
CVE-2025-9326
Foxit PDF Reader PRC File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
High 7.8

Affected Vendor

Affected Software

Foxit Reader
Vulnerable Versions:
12.1.2.15332

Timeline

Official Publish: July 19th, 2023
Last Modified: November 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-416

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact