CVE-2026-21125: Input Validation
Published Oct 12, 2026
·Updated
Improper input validation in parsing sheifd in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code.
Affected Software
1 affected component
Samsung libsimba.heifdec.media.samsung.so<SMR Oct-2026 Release 1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
libsimba.heifdec.media.samsung.soto a version that resolves this vulnerability.Patch SMR Oct-2026 Release 1
Event History
Oct 12, 2026
CVE Published
via MITRE·04:57 AM
Data Sourced
via MITRE·04:57 AM
DescriptionWeakness
Data Sourced
via NVD·05:17 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Who can exploit this issue?
A local attacker can potentially exploit the issue. The provided information does not indicate that it is reachable remotely or without local access.
2
What capability could successful exploitation provide?
Successful exploitation could potentially allow arbitrary code execution.
3
What component should be checked when assessing exposure?
Assess whether Samsung libsimba.heifdec.media.samsung.so is present and whether it predates SMR Oct-2026 Release 1.