CVE-2026-8358
MEDIUM EPSS 6.8%
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 Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its allocation. In fixed versions records with a duplicate identifier are rejected.
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
6.8% 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-2026-8358
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.