CVE-2024-56732

9.3 criticalEPSS 0.7%

Critical (9.3) in harfbuzz project harfbuzz. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE: CWE-122
Published: 2024-12-27
Modified: 2026-06-25
Record from: the NVD, synced 2026-10-19

Affected

harfbuzz_project:harfbuzz

References

https://github.com/harfbuzz/harfbuzz/commit/1767f99e2e2196c3fcae27db6d8b60098d3f6d26
https://github.com/harfbuzz/harfbuzz/security/advisories/GHSA-qmp9-xqm5-jh6m

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