CVE-2026-76181

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-11-05 Modified: 2026-11-12 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: Low
VI: Low
VA: High

Description

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. In fixed versions the index header and the entry count of each page are limited to what an index page can hold, and a page that refers back to one of its parent pages is not followed.

Weakness Classification (2)

Affected Software (4)

VendorProductVersion
The Document Foundation LibreOffice 26.2 < < 26.2.6
The Document Foundation LibreOffice 26.8 < < 26.8.1
The Document Foundation LibreOffice 26.2 < < 26.2.6
The Document Foundation LibreOffice 26.8 < < 26.8.1

Bug Bounty Relevance

36 / 100
✓ No authentication
✓ Low complexity

CVSS Score

5.4 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.14%
Raw Score 0.001390
Percentile 3.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00139
2026-11-13
0.00139
2026-11-12
0.00139
2026-11-10
0.00139
2026-11-09
0.00139
2026-11-08
0.00139
2026-11-07
0.00139
2026-11-06
0.00139

Intelligence Sources

mitre ref →
nvd ref →