CVE-2023-21455: Samsung Exynos Firmware

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper authorization implementation in Exynos baseband prior to SMR Mar-2023 Release 1 allows incorrect handling of unencrypted message.

Affected products

• Samsung Exynos Firmware: affected versions not specified

Published 2023-03-16. Last modified 2026-06-17.