CVE-2021-25394
KEVSamsung Mobile Devices Race Condition Vulnerability
Description
Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.
A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HPublishedJun 11, 2021
Last modifiedJun 17, 2026
Added to KEVJun 29, 2023
Remediation dueJul 20, 2023
References
- security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5Vendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25394US Government Resource
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Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1196 days
- CVSS
- 6.4 MEDIUM
- EPSS (30-day exploit probability)
- 0.40% · top 66% of all CVEs
- Weakness
- CWE-416
Recommended actions
- 1.Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.