CVE-2026-3665
xlnt-community xlnt XLSX File xlsx_consumer.cpp read_office_document null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Mar 7, 2026
- Updated
- Mar 11, 2026
- Reserved
- Mar 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
xlntxlnt-community |
|
References
- VDB-349554 | xlnt-community xlnt XLSX File xlsx_consumer.cpp read_office_document null pointer dereferencevdb-entrytechnical-description
- VDB-349554 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #764647 | xlnt-community xlnt commit bceb706 and before NULL Pointer Dereferencethird-party-advisory
- https://github.com/xlnt-community/xlnt/issues/140issue-tracking
- https://github.com/oneafter/0128/blob/main/xl4/reproexploit
- https://github.com/xlnt-community/xlnt/product
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