CVE-2021-25434

9.8 criticalEPSS 1.7%

Critical (9.8) in linux tizen. 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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-11-01)
CWE: CWE-20
Published: 2021-07-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:tizen

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=7
https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=7

Check your stack JSON