CVE-2018-9556: Google Android

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

In ParsePayloadHeader of payload_metadata.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-113118184.

Affected products

• Google Android: version 9.0 only

Published 2018-12-06. Last modified 2026-06-17.