Remote OOB Write in libimagecodec.quram.so Enables RCE
CVE-2025-21043 Published on September 12, 2025
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
Known Exploited Vulnerability
This Samsung Mobile Devices Out-of-Bounds Write Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.
The following remediation steps are recommended / required by October 23, 2025: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2025-21043 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2025-21043 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2025-21043
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Affected Versions
Samsung Mobile Devices Version SMR Sep-2025 Release in Android 13, 14, 15, 16 is unaffected by CVE-2025-21043Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.