Home/CVE/Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attack
CVE

CVE-2026-20989

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attack

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

LOW · CVSS 2.4 EPSS 0.00011
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-347Improper Verification of Cryptographic Signature
▤

Affected Products & Versions

1
samsung androidall versions
▣

Scoring & Timeline

2.4
LOW · CVSS v3.1 · mobile.security@samsung.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Mar 2026 · 02:18 PM
CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03Vendor Advisory
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