CVE-2023-21255: Debian Linux

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Google Android: affected versions not specified

Published 2023-07-13. Last modified 2026-06-17.