CVE-2021-39540: Pdftools Project Pdftools

High severity, CVSS 7.8. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in pdftools through 20200714. A stack-buffer-overflow exists in the function Analyze::AnalyzePages() located in analyze.cpp. It allows an attacker to cause code Execution.

Affected products

• Pdftools Project Pdftools: up to and including 2020-07-14

Published 2021-09-20. Last modified 2026-06-17.