CVE-2026-3665

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 v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/oneafter/0128/blob/main/xl4/repro	Exploit
https://github.com/xlnt-community/xlnt/	Product
https://github.com/xlnt-community/xlnt/issues/140	Exploit Issue Tracking Vendor Advisory
https://vuldb.com/?ctiid.349554	Permissions Required VDB Entry
https://vuldb.com/?id.349554	Third Party Advisory VDB Entry
https://vuldb.com/?submit.764647	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-07 16:15

Updated : 2026-03-10 20:37

NVD link : CVE-2026-3665

Mitre link : CVE-2026-3665

CVE.ORG link : CVE-2026-3665

JSON object : View

Products Affected

xlnt-community

xlnt

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-476

NULL Pointer Dereference

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El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado."}], "lastModified": "2026-03-10T20:37:44.620", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B381094-639E-4E21-8CB0-60C480F02400", "versionEndIncluding": "1.6.1"}], "operator": "OR"}]}], "sourceIdentifier": "cna@vuldb.com"}