CVE-2021-25395
Samsung Mobile Devices Race Condition Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows local attackers to bypass signature check given a radio privilege is compromised.
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.37% probability · 30th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 29 June 2023 · due 20 July 2023
- Weakness
- CWE-362
- Affected
- samsung/android
- Source
- mobile.security@samsung.com
EPSS 0.4% since 30 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5; https://nvd.nist.gov/vuln/detail/CVE-2021-25395
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.