CVE-2025-15647

Medium

Description

CDT before 1.4.5 contains an out-of-bounds read vulnerability in the opposedVertexInd() function when constraint edge intersections are computed in floating point and round outside adjacent triangles. Attackers can supply nearly-degenerate constraint edges through geometry data to trigger an out-of-bounds array access that crashes the calling process.

SeverityMedium

CVSS5.5

Exploit probability—

ProductCDT

PublishedSep 5, 2026

First seenSep 5, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Update

artem-ogre CDT1.4.5 or later

Patches

github.com/artem-ogre/CDT/commit/bf0d11ebfe3da0da72aed91816f665aef1b447cc

Vendor advisories

github.com/artem-ogre/CDT/releases/tag/1.4.5

Affected products

Product	Affected versions	Fixed in
artem-ogre CDT	v < 1.4.5	1.4.5

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