本ページは harfbuzz_project harfbuzz に影響する公開済み CVE（NVD の CPE 経由で関連付け）を列挙します。各行に深刻度指標・概要・公開日が含まれます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2026-22693 | HarfBuzz is a text shaping engine. Prior to version 12.3.0, a null pointer dereference vulnerability exists in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function fails to check if hb_malloc returns NULL before using placement new to construct an object at the returned pointer address. When hb_malloc fails to allocate memory (which can occur in low-memory conditions or when using custom allocators that simulate allocation failures), it returns NULL. The co | [email protected] | 5.3 | 0.38% | 2026-01-10 | 2026-06-17 |
| CVE-2024-56732 | 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. | [email protected] | 9.3 | 0.63% | 2024-12-27 | 2026-06-25 |
| CVE-2023-25193 | hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks. | [email protected] | 7.5 | 1.81% | 2023-02-04 | 2026-06-17 |
| CVE-2022-33068 | An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via unspecified vectors. | [email protected] | 5.5 | 1.13% | 2022-06-23 | 2026-06-17 |
| CVE-2021-45931 | HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy). | [email protected] | 6.5 | 1.78% | 2021-12-31 | 2026-06-17 |
| CVE-2015-9274 | 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. | [email protected] | 6.5 | 1.54% | 2018-11-15 | 2026-06-16 |
| CVE-2015-8947 | hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted data, a different vulnerability than CVE-2016-2052. | [email protected] | 7.6 | 2.47% | 2016-07-19 | 2026-06-16 |
| CVE-2016-2052 | Multiple unspecified vulnerabilities in HarfBuzz before 1.0.6, as used in Google Chrome before 48.0.2564.82, allow attackers to cause a denial of service or possibly have other impact via crafted data, as demonstrated by a buffer over-read resulting from an inverted length check in hb-ot-font.cc, a different issue than CVE-2015-8947. | [email protected] | 7.6 | 0.97% | 2016-01-25 | 2026-06-16 |