LibreOffice < 26.2.6 / 26.8.x < 26.8.1 Heap Buffer Overflow

medium Nessus Plugin ID 380158

Synopsis

An application installed on the remote host is affected by a heap buffer overflow vulnerability.

Description

The version of LibreOffice installed on the remote host is prior to 26.2.6, or 26.8.x prior to 26.8.1. It is, therefore, affected by a heap buffer overflow vulnerability:

- LibreOffice includes a dBASE database driver, which reads dBASE tables and their .ndx index files when a folder of dBASE files is used as a data source. A heap buffer overflow existed when an index page was read.
The number of entries recorded in a page was not checked against the number of entries the page could hold, which comes from a different field of the index header. A crafted index could also make a page refer back to itself, so that reading it recursed without end. (CVE-2026-76181)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to LibreOffice version 26.2.6 / 26.8.1 or later.

Plugin Details

Severity: Medium

ID: 380158

File Name: libreoffice_26_2_6.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 11/13/2026

Updated: 11/13/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.52

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C

CVSS Score Source: CVE-2026-76181

CVSS v3

Risk Factor: Medium

Base Score: 6.6

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Vulnerability Information

CPE: cpe:/a:libreoffice:libreoffice

Required KB Items: installed_sw/LibreOffice

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 11/5/2026

Reference Information

CVE: CVE-2026-76181

Detections

Analytics