SB2026060152 - Ubuntu update for libreoffice
Published: June 1, 2026
Security Bulletin ID
SB2026060152
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-4430)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to out-of-bounds write in AgileEngine when parsing crafted OOXML documents with mismatched encryption salt parameters. A remote attacker can trick the victim into opening a specially crafted document to execute arbitrary code.
User interaction is required to open a crafted document.
Remediation
Install update from vendor's website.