CVE-2020-35634

medium

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

5.5

Description

A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. An oob read vulnerability exists in Nef_S2/SNC_io_parser.h SNC_io_parser<EW>::read_sface() sfh->boundary_entry_objects Sloop_of. 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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-35634

OS impact

OS	Version	Status	Fixed in
arch		fixed	`5.4-1`
debian	bookworm	fixed	`5.2-3`
debian	bullseye	fixed	`5.2-3`
debian	forky	fixed	`5.2-3`
debian	sid	fixed	`5.2-3`
debian	trixie	fixed	`5.2-3`

References

https://security-tracker.debian.org/tracker/CVE-2020-35634

Verify integrity in audit chain (admin only). AS-IS.