CVE-2015-9274: Harfbuzz Project Harfbuzz

Medium severity, CVSS 6.5. EPSS: 1.5% chance of exploitation in the next 30 days.

HarfBuzz before 1.0.4 allows remote attackers to cause a denial of service (invalid read of two bytes and application crash) because of GPOS and GSUB table mishandling, related to hb-ot-layout-gpos-table.hh, hb-ot-layout-gsub-table.hh, and hb-ot-layout-gsubgpos-private.hh.

Affected products

• Harfbuzz Project Harfbuzz: before 1.0.4 (fixed in 1.0.4)

Published 2018-11-15. Last modified 2026-06-17.