CVE-2021-25436: Linux Tizen

Critical severity, CVSS 9.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Improper input validation vulnerability in Tizen FOTA service prior to Firmware update JUL-2021 Release allows arbitrary code execution via Samsung Accessory Protocol.

Affected products

• Linux Tizen: before 5.5 (fixed in 5.5)

Published 2021-07-08. Last modified 2026-06-17.