What is CVE-2026-20998?

CVE-2026-20998 is a critical-severity vulnerability in Samsung Smart Switch, classified under CWE-287 - IMPROPER AUTHENTICATION. CVSS score: 9.8/10. Published 2026-03-16.

How severe is CVE-2026-20998?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Samsung Smart Switch

CVE-2026-20998

Improper authentication in Smart Switch prior to version 3.7.69.15 allows remote attackers to bypass authentication.

EPSS: 0.005 (42.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samsung Smart_switch
Samsung Mobile Smart Switch — versions 3.7.69.15

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20998?: CVE-2026-20998 is a critical-severity vulnerability in Samsung Smart Switch, classified under CWE-287 - IMPROPER AUTHENTICATION. CVSS score: 9.8/10. Published 2026-03-16.
How severe is CVE-2026-20998?: Critical severity. CVSS v3 base score is 9.8 out of 10.