A vulnerability classified as problematic has been found in mcmilk 7-Zip up to 26.0 . Affected by this issue is the function IInArchive::Open of the file CPP/7zip/Archive/UefiHandler.cpp of the component UEFI Firmware Image Parser . This manipulation of the argument opcode causes out-of-bounds read. This vulnerability is handled as CVE-2026-48111 . The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.