PT-2026-51247
CVE-2026-56411
·
Published
2026-06-21
·
Updated
2026-10-27
Description by
CVSS 3.1
6.9
MediumMetricsAV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Name of the Vulnerable Software and Affected Versions
libexpat versions prior to 2.8.2
Description
The
xmlwf component contains an integer overflow in the endDoctypeDecl() function. This issue is triggered via NOTATION declarations, which are used in XML to define the format of non-XML data.Recommendations
Update to version 2.8.2 or later.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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