CVE-2026-21097: Medium severity Google ActivityTaskManagerService (Android) vulnerability
Published Sep 9, 2026
·Updated
Improper authentication in ActivityTaskManagerService prior to SMR Sep-2026 Release 1 allows local privileged attackers to launch arbitrary activity.
Affected Software
96 affected components
Google ActivityTaskManagerService (Android)<SMR Sep-2026 Release 1
Samsung Android=14.0
Samsung Android=14.0-smr-apr-2022-r1
Samsung Android=14.0-smr-apr-2023-r1
Samsung Android=14.0-smr-apr-2024-r1
Samsung Android=14.0-smr-apr-2025-r1
Samsung Android=14.0-smr-apr-2026-r1
Samsung Android=14.0-smr-aug-2022-r1
Samsung Android=14.0-smr-aug-2023-r1
Samsung Android=14.0-smr-aug-2024-r1
Samsung Android=14.0-smr-aug-2025-r1
Samsung Android=14.0-smr-aug-2026-r1
Samsung Android=14.0-smr-dec-2021-r1
Samsung Android=14.0-smr-dec-2022-r1
Samsung Android=14.0-smr-dec-2023-r1
Samsung Android=14.0-smr-dec-2024-r1
Samsung Android=14.0-smr-dec-2025-r1
Samsung Android=14.0-smr-feb-2022-r1
Samsung Android=14.0-smr-feb-2023-r1
Samsung Android=14.0-smr-feb-2024-r1
Samsung Android=14.0-smr-feb-2025-r1
Samsung Android=14.0-smr-feb-2026-r1
Samsung Android=14.0-smr-jan-2022-r1
Samsung Android=14.0-smr-jan-2023-r1
Samsung Android=14.0-smr-jan-2024-r1
Samsung Android=14.0-smr-jan-2025-r1
Samsung Android=14.0-smr-jan-2026-r1
Samsung Android=14.0-smr-jul-2022-r1
Samsung Android=14.0-smr-jul-2023-r1
Samsung Android=14.0-smr-jul-2024-r1
Samsung Android=14.0-smr-jul-2025-r1
Samsung Android=14.0-smr-jul-2026-r1
Samsung Android=14.0-smr-jun-2022-r1
Samsung Android=14.0-smr-jun-2023-r1
Samsung Android=14.0-smr-jun-2024-r1
Samsung Android=14.0-smr-jun-2025-r1
Samsung Android=14.0-smr-jun-2026-r1
Samsung Android=14.0-smr-mar-2022-r1
Samsung Android=14.0-smr-mar-2023-r1
Samsung Android=14.0-smr-mar-2024-r1
Samsung Android=14.0-smr-mar-2025-r1
Samsung Android=14.0-smr-mar-2026-r1
Samsung Android=14.0-smr-may-2022-r1
Samsung Android=14.0-smr-may-2023-r1
Samsung Android=14.0-smr-may-2024-r1
Samsung Android=14.0-smr-may-2025-r1
Samsung Android=14.0-smr-may-2026-r1
Samsung Android=14.0-smr-nov-2021-r1
Samsung Android=14.0-smr-nov-2022-r1
Samsung Android=14.0-smr-nov-2023-r1
Samsung Android=14.0-smr-nov-2024-r1
Samsung Android=14.0-smr-nov-2025-r1
Samsung Android=14.0-smr-oct-2022-r1
Samsung Android=14.0-smr-oct-2023-r1
Samsung Android=14.0-smr-oct-2024-r1
Samsung Android=14.0-smr-oct-2025-r1
Samsung Android=14.0-smr-sep-2022-r1
Samsung Android=14.0-smr-sep-2023-r1
Samsung Android=14.0-smr-sep-2024-r1
Samsung Android=14.0-smr-sep-2025-r1
Samsung Android=15.0
Samsung Android=15.0-smr-apr-2025-r1
Samsung Android=15.0-smr-apr-2026-r1
Samsung Android=15.0-smr-aug-2025-r1
Samsung Android=15.0-smr-aug-2026-r1
Samsung Android=15.0-smr-dec-2025-r1
Samsung Android=15.0-smr-feb-2025-r1
Samsung Android=15.0-smr-feb-2026-r1
Samsung Android=15.0-smr-jan-2025-r1
Samsung Android=15.0-smr-jan-2026-r1
Samsung Android=15.0-smr-jul-2025-r1
Samsung Android=15.0-smr-jul-2026-r1
Samsung Android=15.0-smr-jun-2025-r1
Samsung Android=15.0-smr-jun-2026-r1
Samsung Android=15.0-smr-mar-2025-r1
Samsung Android=15.0-smr-mar-2026-r1
Samsung Android=15.0-smr-may-2025-r1
Samsung Android=15.0-smr-may-2026-r1
Samsung Android=15.0-smr-nov-2025-r1
Samsung Android=15.0-smr-oct-2025-r1
Samsung Android=15.0-smr-sep-2025-r1
Samsung Android=16.0
Samsung Android=16.0-smr-apr-2026-r1
Samsung Android=16.0-smr-aug-2025-r1
Samsung Android=16.0-smr-aug-2026-r1
Samsung Android=16.0-smr-dec-2025-r1
Samsung Android=16.0-smr-feb-2026-r1
Samsung Android=16.0-smr-jan-2026-r1
Samsung Android=16.0-smr-jul-2026-r1
Samsung Android=16.0-smr-jun-2026-r1
Samsung Android=16.0-smr-mar-2026-r1
Samsung Android=16.0-smr-may-2026-r1
Samsung Android=16.0-smr-nov-2025-r1
Samsung Android=16.0-smr-oct-2025-r1
Samsung Android=16.0-smr-sep-2025-r1
Samsung Android=17.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in SMR Sep-2026 Release 1
Event History
Sep 9, 2026
CVE Published
via MITRE·04:47 AM
Data Sourced
via MITRE·04:47 AM
DescriptionWeakness
Data Sourced
via NVD·05:17 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Who can exploit this issue?
Exploitation requires a local attacker with privileged access. The available information does not indicate that unprivileged or remote attackers can exploit it.
2
What could a successful attacker do?
A successful attacker could launch an arbitrary activity through ActivityTaskManagerService.
3
Which releases are affected?
The issue affects ActivityTaskManagerService versions prior to SMR Sep-2026 Release 1. The provided information does not identify specific Android or device versions.