VulnerabilityAnalyzed

CVE-2021-25394

Samsung Mobile Devices Race Condition Vulnerability

KEVMEDIUM 6.4EPSS 0.40%

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 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: 6.4 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.40% probability · 34th percentile
CISA KEV: Listed 29 June 2023 · due 20 July 2023
Weakness: CWE-416, CWE-362
Affected: samsung/android
Source: mobile.security@samsung.com

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-2021-25394

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25394US Government Resource

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.