CVE Catalog
CVE-2026-56409
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk0.10%
1th percentile — higher than 1% of all known CVEs
Summary
In libexpat before version 2.8.2, there is an integer overflow for the output filename when the -d outputDir option is used.
Risk Assessment
The integer overflow may lead to unexpected application behavior, potentially resulting in data loss or unauthorized code execution.
Recommendation
It is recommended to update the libexpat library to version 2.8.2 or later to mitigate this vulnerability.
Original NVD description (English source)
xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.