CVE-2023-32664Network attack vector

Remote code execution via checkThisBox type confusion

Published Jul 19, 2023 · Updated Nov 4, 2025

Type confusion in Foxit Reader 12.1.2.15332 allows remote attackers to execute code via JavaScript embedded in a malicious PDF. The Field.checkThisBox method accepts a non-integer nWidget object and treats it as an incompatible type, corrupting memory during widget processing. Exploitation requires a user to open the crafted document; the resulting impact can include arbitrary code execution in the reader process.

CVSS severity8.8
High
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Foxit Reader 12.1.2.15332 allows remote attackers to execute code via JavaScript embedded in a malicious PDF. The Field.checkThisBox method accepts a non-integer nWidget object and treats it as an incompatible type, corrupting memory during widget processing. Exploitation requires a user to open the crafted document; the resulting impact can include arbitrary code execution in the reader process.

The record

CVE
CVE-2023-32664
Published
Jul 19, 2023
Updated
Nov 4, 2025
Vendor
Foxit Software
Product
Foxit PDF Reader
Classifications
CWE-843, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.1.2.15332

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Foxit Software · Foxit PDF Readerversion=12.1.2.15332

Published CVSS scores

8.8Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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