Improper Input Validation in Bixby Affects Samsung Devices
CVE-2026-21157

8.3HIGH

Key Information:

Vendor

Samsung
Status
Bixby
Vendor
CVE Published:
29 October 2026

What is CVE-2026-21157?

An input validation flaw in Bixby versions prior to 4.0.85.6 allows local privileged attackers to execute arbitrary activities, potentially compromising user privacy and device integrity. This vulnerability emphasizes the need for robust validation mechanisms to prevent unauthorized actions within the application.

Affected Version(s)

Bixby 4.0.85.6

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2...

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.