Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xlnt-Community | Xlnt | <= 1.6.1 |
Related Weaknesses (CWE)
References
- https://github.com/oneafter/0128/blob/main/xl4/reproExploit
- https://github.com/xlnt-community/xlnt/Product
- https://github.com/xlnt-community/xlnt/issues/140ExploitIssue TrackingVendor Advisory
- https://vuldb.com/?ctiid.349554Permissions RequiredVDB Entry
- https://vuldb.com/?id.349554Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.764647Third Party AdvisoryVDB Entry
FAQ
What is CVE-2026-3665?
CVE-2026-3665 is a vulnerability with a CVSS score of 3.3 (LOW). 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_c...
How severe is CVE-2026-3665?
CVE-2026-3665 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3665?
Check the references section above for vendor advisories and patch information. Affected products include: Xlnt-Community Xlnt.