CVE-2020-35636: Cgal Computational Geometry Algorithms Library

Critical severity, CVSS 9.8. EPSS: 3.3% chance of exploitation in the next 30 days.

A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1 in Nef_S2/SNC_io_parser.h SNC_io_parser::read_sface() sfh->volume() OOB read. A specially crafted malformed file can lead to an out-of-bounds read and type confusion, which could lead to code execution. An attacker can provide malicious input to trigger this vulnerability.

Affected products

• Cgal Computational Geometry Algorithms Library: version 5.1.1 only
• Debian Debian Linux: version 10.0 only

Published 2021-03-04. Last modified 2026-06-17.