cvedb.io
CVE-2026-26824
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-06-03T20:16:18.677 · Last modified 2026-06-17T10:26:20.727

Summary

libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potential information disclosure when processing a crafted XLS file

Affected products

libxls_project — libxls

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.