CVE-2021-25370
Samsung Mobile Devices Memory Corruption Vulnerability
Samsung Mobile Devices
An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 8 November 2022. US federal agencies were required to remediate it by 29 November 2022.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 0.9%, which is higher than 59.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2021-25370 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2021-25370.
What does CVE-2021-25370 affect?
CVE-2021-25370 affects Samsung Mobile Devices. An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.
How severe is CVE-2021-25370?
CVE-2021-25370 is rated MEDIUM with a CVSS base score of 6.1. EPSS puts the probability of exploitation in the next 30 days at 0.9%, higher than 59.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 29 November 2022.
How should organisations respond to CVE-2021-25370?
Apply the vendor patch for Samsung Mobile Devices as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.