Actively exploited · Published Sep 12, 2025 · Assigned by SamsungMobile
CVE-2025-21042
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 November 10, 2025). The chance it is exploited in the next 30 days is estimated at 35.6% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. 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 Dec 1, 2025.
Official description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-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