Medium severity5.5NVD Advisory· Published Oct 14, 2026
CVE-2026-110605
CVE-2026-110605
Description
libschrift through 0.10.2 contains a divide by zero vulnerability that allows attackers to crash applications by supplying a font with unitsPerEm of 0 in the head table. Attackers can provide a crafted TrueType font whose NaN glyph coordinates bypass clip_points(), causing an out-of-bounds raster read in draw_line() during sft_render() and crashing the process.
Affected products
1- Range: <=0.10.2
Patches
Vulnerability mechanics
References
5- github.com/tomolt/libschrift/blob/v0.10.2/schrift.cnvd
- github.com/tomolt/libschrift/blob/v0.10.2/schrift.cnvd
- github.com/tomolt/libschrift/issues/46nvd
- hackmd.io/@haind-pwn/libschrift-unitsperem-zero-oobnvd
- www.vulncheck.com/advisories/libschrift-through-0.10.2-divide-by-zero-via-unitsperem-in-draw-linenvd
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