CVE Watch27 oct 2026

CVE-2026-58496

Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine. Prior to 1.0.7, the `SFNT/TTF` font loader's `SfntLoader::gen` f

CVSS

4.3

Medio

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 27 oct 2026 · Última mod.: 27 oct 2026 · CWE-125

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine. Prior to 1.0.7, the `SFNT/TTF` font loader's `SfntLoader::gen` function in `tvgSfntLoader.cpp` reads `data[0] through data[3]` to identify the font type without first checking that the input buffer contains at least four bytes. Loading an undersized font directly from memory through public APIs such as `tvg::Text::load` causes an out-of-bounds read. Loading through a file path using `mmap` can mask the read because of page alignment; the memory-loading API directly exposes it. Depending on memory layout, a malformed short font may crash the consuming application or disclose adjacent heap memory. This issue is fixed in version 1.0.7.

Referencias oficiales

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