CVE-2026-3665
Low
Description
A vulnerability was identified in xlnt-community xlnt up to 1.6.1. The affected element is the function xlnt::detail::xlsx_consumer::read_office_document of the file source/detail/serialization/xlsx_consumer.cpp of the component XLSX File Parser. The manipulation leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used.
SeverityLow
CVSS3.3
Exploit probability—
ProductXlnt
PublishedMar 7, 2026
First seenMar 7, 2026
Weakness typeCWE-476NULL pointer dereferenceCWE-404CWE-404
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xlnt-community xlnt | v ≤ 1.6.1 | — |
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