QwikSec

Security Database

CVE

CWE

Training

CVE-2026-3665

Published: Mar 7, 2026

Modified: Mar 11, 2026

PUBLISHED

CVSS v3.1

3.3

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.

Vendor	Product	Versions
xlnt-community	xlnt	affected `1.6.0` affected `1.6.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

VDB-349554 | xlnt-community xlnt XLSX File xlsx_consumer.cpp read_office_document null pointer dereference

vdb-entry

technical-description

VDB-349554 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #764647 | xlnt-community xlnt commit bceb706 and before NULL Pointer Dereference

third-party-advisory

https://github.com/xlnt-community/xlnt/issues/140

issue-tracking

https://github.com/oneafter/0128/blob/main/xl4/repro

exploit

https://github.com/xlnt-community/xlnt/

product

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.