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This vulnerability was recently detected via the live feed and has not yet been processed by Precogs AI's context enrichment engine. The data below represents raw telemetric data.

RAW NVD TELEMETRY

CVE-2026-79591

CVSS Base Score
7.8 HIGH
Primary Weakness
CWE-122
Published Date
Sep 10, 2026
Data Source
NVD API

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

Related Vulnerabilitiesvia CWE-122

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Precogs AI detects CVE-2026-79591 in compiled binaries, LLMs, and application layers — even without source code access.