High severity · published Oct 29, 2026
CVE-2026-21157
Improper input validation in Bixby prior to version 4.0.85.6 allows privileged local attackers to launch arbitrary activity
New
8.3
CVSS
–
EPSS
No
On KEV
Description
Improper input validation in Bixby prior to version 4.0.85.6 allows privileged local attackers to launch arbitrary activity.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bixby · Samsung Mobile
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21157
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21157
security.samsungmobile.com
https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=07
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