Zero-day vulnerability in Google Android

Integer overflow
CVE-2026-21385

Vulnerability details

Advisory: SB2026030302 - Multiple vulnerabilities in Google Android

Vulnerable component: Google Android

CVE-ID: CVE-2026-21385

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-190 - Integer overflow

Description:

The vulnerability allows a malicious application to escalate privileges on the system.

The vulnerability exists due to improper input validation in Graphics. A local application can execute arbitrary code with elevated privileges.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://source.android.com/docs/security/bulletin/2026/2026-03-01

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.