Critical severity · published Sep 12, 2025
CVE-2025-21043
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
In wildKEV
9.8
CVSS
2.2%
EPSS
Yes
On KEV
Description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildYes
CISA KEVListed Oct 2, 2025
Federal remediation dueOct 23, 2025
Ransomware campaign useNot known
Affected products
Which versions
SM
Samsung Mobile Devices · Samsung Mobile
All versions, or not specified · source: vendor
AN
Android · Samsung
13.0; 13.0; 13.0; 13.0; 13.0; 13.0; +34 more · source: NVD
MD
Mobile Devices · Samsung
All versions, or not specified · source: KEV
In the news
VulnerabilityHigh
[CISA KEV] CVE-2025-21043: Samsung Mobile Devices - Samsung Mobile Devices Out-of-Bounds Write Vulnerability
Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.
MDMobile DevicesCVE-2025-21043
Oct 2, 2025·CISA KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21043
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-21043
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
security.samsungmobile.com
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09
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