Resource exhaustion in PyPDF - CVE-2025-62708

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Main Vulnerability Database Vulnerabilities #VU118843

Resource exhaustion in PyPDF - CVE-2025-62708

Published: November 28, 2025


Vulnerability identifier: #VU118843
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-62708
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the LZWDecode filter. A remote attacker can pass a specially crafted PDF file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

PyPDF
IBM Watson Discovery for IBM Cloud Pak for Data

How to mitigate CVE-2025-62708

Install updates from vendor's website.

PyPDF - update to 6.1.3
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.3.0

External References

Related Security Bulletins