CVE-2021-25434: Linux Tizen

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Improper input validation vulnerability in Tizen bootloader prior to Firmware update JUL-2021 Release allows arbitrary code execution using param partition in wireless firmware download mode.

Affected products

• Linux Tizen: before 5.5 (fixed in 5.5)

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