October 2, 2025 · Applied Cybernetics Group
CVE-2025-21043 Samsung Mobile Devices
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
- Added to KEV
2025-10-02- Federal due date
2025-10-23- Vendor
- Samsung
- Product
- Mobile Devices
- EPSS
- 82.7th percentile (score 0.022, as of
2026-11-06) - NVD CVSS v3.1
- 8.8 (HIGH)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2025-21043
CISA short description
Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
NVD description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.