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Ubuntu 26.04 Kylin Software Center Critical Privilege Escalation USN-8424-1

ubuntu
Calendar Grey June 11, 2026
Scroller Ubuntu
Ubuntu Kylin Software Center faced a critical issue allowing admin access through D-Bus, needing urgent action.
Ubuntu Kylin Software Center could be made to run programs as an administrator if it received specially crafted input via its D-Bus service.

Summary

Ubuntu Kylin Software Center could be made to run programs as an

administrator if it received specially crafted input via its D-Bus service.

Software Description:

- ubuntu-kylin-software-center: Software maintenance management tools

Details:

It was discovered that Ubuntu Kylin Software Center incorrectly

handled user-supplied input in its D-Bus service. A local attacker

could possibly use this issue to gain administrative privileges.

Topics%20covered

Topics Covered

security advisory critical Ubuntu local attack D-Bus administrator privilege

Update Instructions

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

Ubuntu 26.04 LTS
  ubuntu-kylin-software-center    4.5.77.1ubuntu0.1

In general, a standard system update will make all the necessary
changes.

References

https://ubuntu.com/security/notices/USN-8424-1

https://launchpad.net/bugs/2154543

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8424-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu local attack D-Bus administrator privilege

Package Information

https://launchpad.net/ubuntu/+source/ubuntu-kylin-software-center/4.5.77.1ubuntu0.1

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