Description
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
CVSS 6.5EPSS 0.22799999999999998%Risk 0.66
View source- Published
- 2026-06-03 20:16:18
- Affected versions
- <=1.6.3
- Type
- Package
- Last modified
- 2026-07-22 20:10:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L