Use-After-Free Vulnerability in PoDoFo PDF Dictionary Parser by PoDoFo
CVE-2025-9394

4.8MEDIUM

Key Information:

Vendor

PoDoFo

Status
Podofo
Vendor
CVE Published:
24 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9394?

A critical flaw exists in the PoDoFo library, specifically within the PDF Dictionary Parser. The vulnerability is in the PdfTokenizer::DetermineDataType function, located in src/podofo/main/PdfTokenizer.cpp. Attackers can manipulate input in such a way that results in a use-after-free condition, enabling them to execute arbitrary code on the local host. An exploit for this vulnerability has already been published, highlighting the urgency for users to apply the provided patch (22d16cb142f293bf956f66a4d399cdd65576d36c) to safeguard their systems.

Affected Version(s)

PoDoFo 1.1.0-dev

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-9394 - Proof of Concept

References

https://vuldb.com/?id.321227
vdb-entrytechnical-description
https://vuldb.com/?ctiid.321227
signaturepermissions-required
https://vuldb.com/?submit.632364
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

xdcao (VulDB User)
.
CVE-2025-9394 : Use-After-Free Vulnerability in PoDoFo PDF Dictionary Parser by PoDoFo