Alerts This Week
Warning Icon 1 652
Alerts This Week
Warning Icon 1 652

Ubuntu LibreOffice Important DoS USN-8352-1 CVE-2026-4430

ubuntu
Calendar Grey June 1, 2026
Dist Ubuntu Esm H88
LibreOffice update addresses critical crash risks allowing code execution on Ubuntu systems. Stay secure with timely updates.
LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file.

Summary

LibreOffice could be made to crash or run programs as your login if it

opened a specially crafted file.

Software Description:

- libreoffice: Office productivity suite

Details:

Duc Anh Nguyen discovered that LibreOffice incorrectly handled mismatched

encryption salt parameters in crafted OOXML documents. An attacker could

use this issue to cause LibreOffice to crash, resulting in a denial of

service, or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu important LibreOffice

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
  libreoffice                     4:26.2.3.2-0ubuntu0.26.04.1

Ubuntu 25.10
  libreoffice                     4:25.8.7-0ubuntu0.25.10.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

https://ubuntu.com/security/notices/USN-8352-1

CVE-2026-4430

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8352-1

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu important LibreOffice

Package Information

https://launchpad.net/ubuntu/+source/libreoffice/4:26.2.3.2-0ubuntu0.26.04.1
https://launchpad.net/ubuntu/+source/libreoffice/4:25.8.7-0ubuntu0.25.10.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here