cbcvebase.
CVE-2026-56404
published 2026-06-21

CVE-2026-56404: libexpat before 2.8.2 has an integer overflow in addBinding.

PriorityP432medium6.9CVSS 3.1
AVLACHPRNUINSUCHIHAL
EPSS
0.14%
3.7th percentile
libexpat before 2.8.2 has an integer overflow in addBinding.

Affected

5 ranges
VendorProductVersion rangeFixed in
debianexpat
debianxmlrpc-c
libexpat_projectlibexpat< 2.8.22.8.2
mozillafirefox
mozillathunderbird

CVSS provenance

nvdv3.16.9MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
vendor_redhat6.9MEDIUM
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