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Vulnerability record · CVE-2026-79592 · published 10 September 2026

CVE-2026-79592: Out-of-bounds read vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.43% · top 65.0% CWE-125 · Out-of-bounds read Deferred
7.5CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
22 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

LinkTags
https://github.com/libxls/libxls/issues/162
https://github.com/libxls/libxls/pull/165/changes/6eed8bc1d51d6649faebab0184b21ab8768d8fa6
https://github.com/libxls/libxls/issues/162

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Source: NIST National Vulnerability Database (record CVE-2026-79592), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.