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.
Published: 2026-09-10
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 11 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 11 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Fri, 11 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Libxls
Libxls libxls
Vendors & Products Libxls
Libxls libxls

Thu, 10 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Read in libxls 1.6.3 xls_dumpSummary Function
Weaknesses CWE-125
CWE-20

Thu, 10 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
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.
References

Subscriptions

Libxls Libxls
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-11T14:58:33.514Z

Reserved: 2026-08-25T00:00:00.000Z

Link: CVE-2026-79592

cve-icon Vulnrichment

Updated: 2026-09-11T14:58:24.709Z

cve-icon NVD

Status : Received

Published: 2026-09-10T21:17:47.047

Modified: 2026-09-11T15:17:04.623

Link: CVE-2026-79592

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-11T13:00:14Z

Weaknesses