CVE-2026-6047
MEDIUM EPSS 2.1%
Published Jun 15, 20262w ago · Modified Jun 17, 20262w ago
5.4 CVSS 4.0
Published Jun 15, 2026 2w ago
Last Modified Jun 17, 2026 2w ago
Description
LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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 Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
2.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-787 Out-of-bounds Write Memory Safety
CWE-843
References 1
- libreoffice.org https://www.libreoffice.org/about-us/security/advisories/cve-2026-6047
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.