CVE-2021-25370

Samsung Mobile Devices: Memory Corruption

As of , CVE-2021-25370 in Samsung Mobile Devices is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 8 November 2022
US federal deadline
29 November 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.01Higher than 58% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.01 on 8 November 2022EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: security.samsungmobile.comLinks below, from CISA's entry.

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

Samsung mobile devices using Mali GPU contain an incorrect implementation handling file descriptor in dpu driver. This incorrect implementation results in memory corruption, leading to kernel panic. This vulnerability was chained with CVE-2021-25337 and CVE-2021-25369.

CISA's description

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

The CVE record's description, from Samsung Mobile

CVE published
26 March 2021
Assigned by
Samsung Mobile
CVSS
6.1 Medium (CVSS 3.1, from the CNA)
CWE-703
Improper Check or Handling of Exceptional Conditions
CWE-416
Use After Free
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Mobile Devices: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-21042Out-of-Bounds WriteSamsung Mobile DevicesPatch soon0.33
CVE-2021-25337Improper Access ControlSamsung Mobile DevicesPatch soon0.03
CVE-2023-21492Insertion of Sensitive Information Into Log FileSamsung Mobile DevicesPatch soon0.03
CVE-2025-21043Out-of-Bounds WriteSamsung Mobile DevicesPatch soon0.02
CVE-2021-25369Improper Access ControlSamsung Mobile DevicesPatch soon0.01
CVE-2021-25371UnspecifiedSamsung Mobile DevicesPatch soon0.01
CVE-2021-25372Improper Boundary CheckSamsung Mobile DevicesPatch soon0.01
CVE-2021-25487Out-of-Bounds ReadSamsung Mobile DevicesPatch soon0.01
CVE-2021-25489Improper Input ValidationSamsung Mobile DevicesPatch soon0.01
CVE-2021-25394Race ConditionSamsung Mobile DevicesPatch soon0.00

All 13 entries for Mobile Devices

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