CVE-2026-55366: Google Android

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

In IP Multimedia Subsystem, there is a possible authentication bypass due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

• Google Android: affected versions not specified

Published 2026-09-15. Last modified 2026-09-21.