6.5

CVE-2026-26824

Exploit
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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libxls Project ≫ Libxls Version <= 1.6.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.133
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CWE-457 Use of Uninitialized Variable

The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

https://github.com/libxls/libxls/issues/155
Exploit
Issue Tracking
https://github.com/libxls/libxls/commit/9adebc9b6d60db21f25ddc898e8760eeb69d6529
https://github.com/libxls/libxls/issues/153