Medium severity · published Oct 12, 2026
CVE-2026-21138
Insufficient verification of data authenticity in Smart Switch prior to version 3.7.73 allows physical attackers to install arbitrary applications
6.9
CVSS
0.1%
EPSS
No
On KEV
Description
Insufficient verification of data authenticity in Smart Switch prior to version 3.7.73 allows physical attackers to install arbitrary applications.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Smart Switch · Samsung Mobile
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21138
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21138
security.samsungmobile.com
https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10
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