CVE-2024-45491

—

CVSS 3.1

9.8 critical

EPSS

1%p64

Published

Aug 30, 2024 (Aug 30, 2024)

Modified

Jun 17, 2026

Description

An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).

Vendors: libexpat project
Products: libexpat
Weakness: CWE-190
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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