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CVE-2026-4430

Heap Buffer Overflow in AgileEngine

Published: May 7, 2026Updated: May 8, 2026 Sources: CVE List NVD BDUCWE-787
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.1%
Top 99.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

LibreOfficeThe Document Foundation
On-premDesktop App
Consumer Software / productivity
libreofficelibreoffice
On-premDesktop App
Consumer Software / productivity
the document foundationoss-projectNLConsumer Softwareaka document foundation, tdf
libreofficeoss-projectFIConsumer Software

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.libreoffice.org/security/#cve-2026-4430
libreoffice.org
https://www.libreoffice.org/about-us/security/advisories/cve-2026-4430
libreoffice.org

Timeline

Published
May 7, 2026
Last Updated
May 8, 2026

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