Denial of Service Vulnerability in VeryPDF PCL Converter 2.7
CVE-2019-25549

6.9MEDIUM

Key Information:

Vendor

VeryPDF

Status
VeryPDF Pcl Converter
Vendor
CVE Published:
21 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25549?

VeryPDF PCL Converter 2.7 is susceptible to a denial of service attack that allows local users to cause the application to crash. This vulnerability is exploited by providing an exceptionally long password, specifically a 3000-byte string, within the PDF Security encryption settings. When processing PCL files, the application fails due to a buffer overflow triggered by this excessive input.

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Affected Version(s)

VeryPDF PCL Converter 2.7

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-2019-25549 - Proof of Concept

References

https://www.exploit-db.com/exploits/46872
exploit
http://www.verypdf.com
product
https://www.vulncheck.com/advisories/verypdf-pcl-converte...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
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

Alejandra Sánchez
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