CVE-2026-79591

A heap-buffer-overflow and use-after-free vulnerability exists in the xls_getCSS() function of libxls 1.6.3 , caused by insufficient validation of a file-controlled font index. A potential fix is referenced in a GitHub pull request (libxls PR #164 ), alongside issue #161 . No CVSS metrics or conf...

CVE-2026-79591

A heap-buffer-overflow and use-after-free vulnerability exists in the xlsgetCSS function of libxls 1.6.3 due to insufficient validation of a file-controlled font index...

EUVD-2026-75745

A heap-buffer-overflow and use-after-free vulnerability exists in the xlsgetCSS function of libxls 1.6.3 due to insufficient validation of a file-controlled font index...