CVE-2024-56732: critical vulnerability in harfbuzz
HarfBuzz heap-buffer-overflow on hb_cairo_glyphs_from_buffer
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.7%
HarfBuzz is a text shaping engine. Starting with 8.5.0 through 10.0.1, there is a heap-based buffer overflow in the hb_cairo_glyphs_from_buffer function.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
harfbuzz · harfbuzzRelated CVEs — harfbuzz
In the same product, most dangerous first.
CVE-2026-22693MEDIUMNull Pointer Dereference in SubtableUnicodesCache::create leading to DoSEPSS 0.5%CVE-2026-113679HIGHHarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_stringEPSS 0.2%CVE-2026-113680MEDIUMHarfBuzz 8.0.0 through 14.6.0 WebAssembly Shaper NULL Pointer Dereference DoSEPSS 0.2%