CVE-2026-21094: Input Validation
Published Sep 9, 2026
·Updated
Improper input validation in wpasupplicant prior to SMR Sep-2026 Release 1 allows adjacent attackers to write out-of-bounds memory.
Affected Software
96 affected components
OpenBSD wpa_supplicant<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
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 is exposed to exploitation?
Systems using the identified OpenBSD wpa_supplicant software before SMR Sep-2026 Release 1 are in scope. The attacker must be adjacent to the target.
2
What access does an attacker need?
The available information identifies this as an adjacent-attacker issue. It does not state that exploitation can be performed by an attacker without adjacency.
3
How can I determine whether my deployment is affected?
Check whether the wpa_supplicant version predates SMR Sep-2026 Release 1. The provided data does not include additional configuration-based indicators or detection methods.