CVE-2026-20989

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

CVSS v3 2.4 LOW

2.4^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.9 / Impact : 1.4

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:samsung:android:16.0:-::::::
	cpe:2.3:o:samsung:android:16.0:smr-aug-2025-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-dec-2025-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-feb-2026-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-jan-2026-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-nov-2025-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-oct-2025-r1::::::
	cpe:2.3:o:samsung:android:16.0:smr-sep-2025-r1::::::

History

20 Mar 2026, 13:53

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 2.4
References	~~() https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03 -~~	() https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03 - Vendor Advisory
CPE		cpe:2.3:o:samsung:android:16.0:smr-nov-2025-r1:::::: cpe:2.3:o:samsung:android:16.0:smr-aug-2025-r1:::::: cpe:2.3:o:samsung:android:16.0:smr-dec-2025-r1:::::: cpe:2.3:o:samsung:android:16.0:-:::::: cpe:2.3:o:samsung:android:16.0:smr-sep-2025-r1:::::: cpe:2.3:o:samsung:android:16.0:smr-jan-2026-r1:::::: cpe:2.3:o:samsung:android:16.0:smr-oct-2025-r1:::::: cpe:2.3:o:samsung:android:16.0:smr-feb-2026-r1::::::
First Time		Samsung android Samsung
CWE		CWE-347
Summary		(es) Verificación impropia de la firma criptográfica en Ajustes de fuente antes de la versión SMR Mar-2026 Release 1 permite a atacantes físicos usar fuentes personalizadas.

16 Mar 2026, 14:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-16 14:18

Updated : 2026-03-20 13:53

NVD link : CVE-2026-20989

Mitre link : CVE-2026-20989

CVE.ORG link : CVE-2026-20989

JSON object : View

Products Affected

samsung

android

CWE

CWE-347

Improper Verification of Cryptographic Signature

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