#VU118799 Deserialization of Untrusted Data in pdfminer.six - CVE-2025-64512
Published: November 27, 2025 / Updated: January 9, 2026
Vulnerability identifier: #VU118799
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2025-64512
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
pdfminer.six
pdfminer.six
Software vendor:
pdfminer
pdfminer
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in CMapDB._load_data(). A remote attacker can trick the victim into opening a specially crafted PDF file and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.