CVE-2026-21126

EUVD-2026-97190
Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to write out-of-bounds memory.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 4.46%
Vulnerability Media Exposure
References
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10