Samsung · Mobile Devices
CVE-2025-21043
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
What it is
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
CISA: Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: October 23, 2025
More exploited flaws from Samsung
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Nov 10, 2025 | Out-of-Bounds Write | Mobile Devices | High 8.8 | 36% |
| Sep 18, 2023 | Use-After-Free | Mobile Devices | Medium 5.0 | 0.4% |
| Jun 29, 2023 | Unspecified | Mobile Devices | Medium 6.1 | 0.8% |
| Jun 29, 2023 | Improper Boundary Check | Mobile Devices | Medium 6.1 | 0.8% |
| Jun 29, 2023 | Race Condition | Mobile Devices | Medium 6.4 | 0.4% |
| Jun 29, 2023 | Race Condition | Mobile Devices | Medium 6.4 | 0.4% |
| Jun 29, 2023 | Out-of-Bounds Read | Mobile Devices | High 7.3 | 0.6% |
| Jun 29, 2023 | Improper Input Validation | Mobile Devices | Low 3.3 | 0.5% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.