CVE-2026-21126

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.

Score

CVSS 4.0 6.9 Medium

Status

Awaiting Analysis - mobile.security@samsung.com

Published

2026-10-12

Last modified

2026-10-16

Affected products

• Samsung Mobile Devices (Samsung Mobile)

References

• https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10