CVE-2025-15647

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.

Scoring

Severity
MEDIUM
CVSS base score
6.8
CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS probability
0.12%
CWE
CWE-125
Published
2026-09-05
Last modified
2026-09-08

Affected products

Weakness type

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