CVE-2026-48423: Heap-based Buffer Overflow (CWE-122) in Adobe Adobe Substance 3D Sampler

CVE-2026-48423 is a heap-based buffer overflow vulnerability in Adobe Substance 3D Sampler. Successful exploitation requires user interaction, specifically opening a crafted malicious file, which may allow an attacker to execute arbitrary code with the privileges of the current user. The vulnerability is classified under CWE-122. As of the published date, no official fix or patch has been disclosed by Adobe.

Exploitation of this vulnerability could result in arbitrary code execution in the context of the current user, potentially leading to full compromise of the affected system depending on user privileges. The attack vector requires user interaction (opening a malicious file), which limits automatic exploitation. No known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, users should exercise caution when opening files from untrusted sources. Monitor Adobe's official channels for updates and apply any forthcoming patches promptly.