CVE-2026-110605CWE-369

CVE-2026-110605

Medium · published October 14, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
9.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · 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
0.00201 · 9.4th percentile
Weakness
CWE-369 · Divide By Zero
Published
2026-10-14T19:17Z
References (5)
https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L1422-L1503 · [email protected]https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L542 · [email protected]https://github.com/tomolt/libschrift/issues/46 · [email protected]https://hackmd.io/@haind-pwn/libschrift-unitsperem-zero-oob · [email protected]https://www.vulncheck.com/advisories/libschrift-through-0.10.2-divide-by-zero-via-unitsperem-in-draw-line · [email protected]
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 14 OCT 14:16Z
    libschrift through 0.10.2 Divide by Zero via unitsPerEm in draw_line
    cvelistv5
  • 14 OCT 14:16Z
    libschrift through 0.10.2 Divide by Zero via unitsPerEm in draw_line
    cvelistv5