Vulnerability DatabaseCVE-2026-4430
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CVE-2026-4430
Published:May 07, 2026
Updated:May 16, 2026
Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7.
Affected Packages
https://github.com/LibreOffice/core.git (GITHUB):
Affected version(s) >=libreoffice-25-8-branch-point <libreoffice-25.8.7.1
Fix Suggestion:
Update to version libreoffice-25.8.7.1
https://github.com/LibreOffice/core.git (GITHUB):
Affected version(s) >=libreoffice-26.2.0.0.alpha1 <libreoffice-26.2.3.1
Fix Suggestion:
Update to version libreoffice-26.2.3.1
Related Resources (1)
https://www.libreoffice.org/about-us/security/advisories/cve-2026-4430
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CVSS v4
Base Score:
5.4
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
6.6
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.02