CVE-2021-45931

MEDIUM 6.5CVE-2021-45931 · Published 01/01/2022 · updated 17/06/2026

In short

CVE-2021-45931 is a MEDIUM (CVSS 6.5) vulnerability affecting harfbuzz (harfbuzz project).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 79.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
harfbuzz harfbuzz_project	`= 2.9.0`	No fix yet

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).

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Package

Affected versions

Patched versions

= 2.9.0

No fix yet

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