CVE-2026-4430

medium Red Hat
CVSS v3 Base Score
7.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 96% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
Low
Integrity
Low
Availability
High
Published: May 7, 2026 (64 days ago)
Last Modified: May 7, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in LibreOffice. A remote attacker could exploit this out-of-bounds write vulnerability by tricking a user into opening a specially crafted OOXML (Office Open XML) document with mismatched encryption salt parameters. This could lead to a denial of service (DoS), making the application unavailable, and potentially result in limited information disclosure or integrity impact.

CWE

CWE-787

Affected Products

Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 www.libreoffice.org