Vulnerability DatabaseCVE-2026-110605
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CVE-2026-110605
Published:October 14, 2026
Updated:October 15, 2026
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.
Related Resources (8)
https://www.vulncheck.com/advisories/libschrift-through-0.10.2-divide-by-zero-via-unitsperem-in-draw-line
https://github.com/tomolt/libschrift/issues/46
https://hackmd.io/@haind-pwn/libschrift-unitsperem-zero-oob
https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L542
https://github.com/tomolt/libschrift
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110605.json
https://github.com/tomolt/libschrift/blob/v0.10.2/schrift.c#L1422-L1503
https://nvd.nist.gov/vuln/detail/CVE-2026-110605
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Divide By Zero
CWE-369
EPSS
Base Score:
0.20