This vulnerability (CVE-2026-21048) is an out-of-bounds write issue classified under CWE-787, occurring in the DNG format parsing functionality within the libimagecodec.media.quram.so library on Samsung Mobile Devices. It allows remote attackers to write to memory outside intended bounds, potentially leading to memory corruption. The CVSS 4.0 vector indicates network attack vector with low attack complexity, no privileges or user interaction required, and high impact on confidentiality and integrity. The vulnerability was published on July 10, 2026, but no remediation or patch details have been disclosed by the vendor.

Successful exploitation could allow remote attackers to corrupt memory, potentially leading to denial of service or other impacts on device integrity. The CVSS score of 8.4 reflects high severity with significant confidentiality and integrity impact. However, no known exploits are reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround has been disclosed, users and administrators should monitor Samsung Mobile advisories for updates and apply patches once available.