What’s Vulnerable › Vulnerabilities

CVE-2024-56732: HarfBuzz heap-buffer-overflow on hb_cairo_glyphs_from_buffer

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-12-27 · updated 2026-06-25
• Weakness: CWE-122

Description

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.

Affected products

• harfbuzz: from 8.5.0 through 10.0.1

References

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

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