CVE-2026-79592: n/a
An out-of-bounds read vulnerability exists in the xls_dumpSummary() function of libxls version prior to 1.6.3. This vulnerability is caused by insufficient validation of file-controlled OLE summary offsets, which may lead to reading memory outside the intended bounds.
AI Analysis
Technical Summary
CVE-2026-79592 describes an out-of-bounds read vulnerability in libxls 1.6.3 and earlier versions. The issue arises in the xls_dumpSummary() function due to inadequate validation of OLE summary offsets controlled by the input file. This can cause the function to read memory beyond the allocated buffer, potentially leading to application crashes or information disclosure. No CVSS score or detailed impact metrics are provided in the source data.
Potential Impact
The vulnerability allows an attacker to cause out-of-bounds memory reads when processing crafted OLE summary offsets in XLS files. This could result in application instability or unintended information disclosure. No evidence of active exploitation or further impact details are provided.
Mitigation Recommendations
A fixed version 1.6.3 of libxls is available that addresses this vulnerability. Users should upgrade to libxls version 1.6.3 or later to remediate this issue. No additional mitigation guidance is provided.
CVE-2026-79592: n/a
Description
An out-of-bounds read vulnerability exists in the xls_dumpSummary() function of libxls version prior to 1.6.3. This vulnerability is caused by insufficient validation of file-controlled OLE summary offsets, which may lead to reading memory outside the intended bounds.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-79592 describes an out-of-bounds read vulnerability in libxls 1.6.3 and earlier versions. The issue arises in the xls_dumpSummary() function due to inadequate validation of OLE summary offsets controlled by the input file. This can cause the function to read memory beyond the allocated buffer, potentially leading to application crashes or information disclosure. No CVSS score or detailed impact metrics are provided in the source data.
Potential Impact
The vulnerability allows an attacker to cause out-of-bounds memory reads when processing crafted OLE summary offsets in XLS files. This could result in application instability or unintended information disclosure. No evidence of active exploitation or further impact details are provided.
Mitigation Recommendations
A fixed version 1.6.3 of libxls is available that addresses this vulnerability. Users should upgrade to libxls version 1.6.3 or later to remediate this issue. No additional mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-08-25T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6aa3176191cc7f3848b51c0a
Added to database: 09/10/2026, 20:47:29 UTC
Last enriched: 09/10/2026, 21:02:35 UTC
Last updated: 09/10/2026, 21:28:41 UTC
Views: 5
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