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VulnerabilityPublished Updated

CVE-2024-30342: 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, 14:05 UTC

CVSS 3.0 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 56% 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 2 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
  • =2023.3.0.23028
Fixed in–

AI-suggested

Organizations should immediately inventory their Foxit PDF Reader installations to identify affected versions (2023.3.0.23028). Until an official patch is released, implement the following mitigations: 1) Enforce strict email and web filtering to block or quarantine suspicious PDF attachments and links. 2) Educate users to avoid opening PDFs from untrusted or unknown sources and to be cautious of phishing attempts. 3) Use application whitelisting and endpoint detection and response (EDR) solutions to detect and block suspicious behaviors associated with exploitation attempts. 4) Consider disabling or restricting annotation features in Foxit Reader through configuration policies if feasible. 5) Employ sandboxing or isolation techniques for opening PDF files, limiting the potential impact of exploitation. 6) Monitor security advisories from Foxit for patches and apply updates promptly once available. 7) Conduct regular vulnerability assessments and penetration testing to identify and remediate related risks. These steps go beyond generic advice by focusing on user behavior, technical controls, and proactive monitoring tailored to this specific vulnerability.

Description

Foxit PDF Reader Annotation 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 Annotation 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-22720.

References

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