CVE-2026-20991: Medium severity ThemeManager ThemeManager vulnerability
Published Mar 16, 2026
·Updated
Improper privilege management in ThemeManager prior to SMR Mar-2026 Release 1 allows local privileged attackers to reuse trial contents.
Affected Software
77 affected components
ThemeManager ThemeManager<SMR Mar-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-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-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-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-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-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-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-aug-2025-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-jun-2025-r1
Samsung Android=15.0-smr-mar-2025-r1
Samsung Android=15.0-smr-may-2025-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-aug-2025-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-nov-2025-r1
Samsung Android=16.0-smr-oct-2025-r1
Samsung Android=16.0-smr-sep-2025-r1
Event History
Mar 16, 2026
CVE Published
via MITRE·04:31 AM
Data Sourced
via MITRE·04:31 AM
DescriptionWeakness
Data Sourced
via NVD·02:18 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-20991?
CVE-2026-20991 is classified as a high severity vulnerability due to its potential for local privileged access exploitation.
2
How do I fix CVE-2026-20991?
To fix CVE-2026-20991, update the ThemeManager to the SMR Mar-2026 Release 1 version or later.
3
What kind of attacks can occur due to CVE-2026-20991?
CVE-2026-20991 can allow local attackers to reuse trial content, compromising system integrity.
4
Which versions of ThemeManager are affected by CVE-2026-20991?
CVE-2026-20991 affects all ThemeManager versions prior to SMR Mar-2026 Release 1.
5
What does improper privilege management mean in the context of CVE-2026-20991?
Improper privilege management in CVE-2026-20991 refers to insufficient controls that allow local attackers to gain elevated access rights.