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VulnerabilityPublished Updated

CVE-2024-30333: Foxit PDF Reader · Use After Free

Affects Foxit PDF ReaderSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.0 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 59% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Apr 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Foxit PDF ReaderAffected
  • =2023.2.0.21408
Fixed in–

AI-suggested

  1. Immediately monitor Foxit's official channels for patches addressing CVE-2024-30333 and apply updates as soon as they become available.
  2. Until a patch is released, restrict the use of Foxit PDF Reader version 2023.2.0.21408 by disabling it or replacing it with alternative PDF readers that are not vulnerable.
  3. Implement strict email and web filtering to block or quarantine suspicious PDF attachments and links to reduce the risk of malicious document delivery.
  4. Educate users about the risks of opening unsolicited or unexpected PDF files, emphasizing caution with documents from unknown or untrusted sources.
  5. Employ endpoint detection and response (EDR) solutions to monitor for unusual process behavior or exploitation attempts related to PDF Reader processes.
  6. Use application whitelisting to prevent unauthorized execution of code spawned by exploited PDF Reader processes.
  7. Enforce the principle of least privilege for user accounts to limit the impact of potential code execution.
  8. Regularly back up critical data and verify recovery procedures to mitigate ransomware or destructive attack consequences.

Description

Foxit PDF Reader Doc Object Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Doc objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22639.

References

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