Actively exploited · Published Sep 12, 2025 · Assigned by SamsungMobile
CVE-2025-21043
High 8.8 Exploited
In plain English
A high-severity out-of-bounds write in Samsung Mobile Devices from Samsung Mobile. Attackers are actively exploiting it in the wild (listed by CISA on October 2, 2025). The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Oct 23, 2025.
Official description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Samsung Mobile | Samsung Mobile Devices | see references |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H