CVE-2026-72522
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
0th
libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.
| CWE | CWE-125 |
| Vendor | libexpat project |
| Product | libexpat |
| Published | Aug 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
libexpat project / libexpat
0 < 2.8.3