CVE-2026-21021

EUVD-2026-29907
Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.8 MEDIUM
PHYSICAL
LOW
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 13%
Affected Products (NVD)
VendorProductVersion
samsungandroid
16.0
samsungandroid
16.0:smr-apr-2026-r1
samsungandroid
16.0:smr-aug-2025-r1
samsungandroid
16.0:smr-dec-2025-r1
samsungandroid
16.0:smr-feb-2026-r1
samsungandroid
16.0:smr-jan-2026-r1
samsungandroid
16.0:smr-mar-2026-r1
samsungandroid
16.0:smr-nov-2025-r1
samsungandroid
16.0:smr-oct-2025-r1
samsungandroid
16.0:smr-sep-2025-r1
𝑥
= Vulnerable software versions
Vulnerability Media Exposure
References
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=05