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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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References
History
Thu, 10 Sep 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| References |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-10T20:40:06.703Z
Reserved: 2026-08-25T00:00:00.000Z
Link: CVE-2026-79591
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