CVE-2026-79592
High
Description
An out-of-bounds read vulnerability exists in the xls_dumpSummary() function of libxls 1.6.3 due to insufficient validation of file-controlled OLE summary offsets.
SeverityHigh
CVSS7.5
Exploit probability—
ProductLibxls
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libxls | 1.6.3 | — |
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