CVE-2026-20989 Details
Description
Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.
A vulnerability exists in Samsung Font Settings prior to the March 2026 Security Maintenance Release, due to improper verification of cryptographic signatures. This flaw allows physical attackers to use custom fonts on affected devices.
Users can update to the March 2026 Security Maintenance Release to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 16, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-347 | Improper Verification of Cryptographic Signature | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| samsung android | 16.0 - 16.0 smr-aug-2025-r1 16.0 smr-dec-2025-r1 16.0 smr-feb-2026-r1 16.0 smr-jan-2026-r1 16.0 smr-nov-2025-r1 16.0 smr-oct-2025-r1 16.0 smr-sep-2025-r1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 20, 2026 | Initial Analysis | [email protected] |
| Mar 16, 2026 | New CVE Received | [email protected] |