Report: Update: CVE-2026-40003 - USB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROM

Report: Update: CVE-2026-40003 - USB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROM

CVE ID :CVE-2026-40003 Published : May 7, 2026, 2:16 a.m. | 26 minutes ago Description :ZTE ZX297520V3 BootROM contains a vulnerability that allows arbitrary memory writes via USB. Attackers can exploit the lack of target address validation in the USB download mode to write data to any location in BootROM runtime memory, thereby overwriting the stack, hijacking the execution flow, bypassing the Secure Boot signature verification mechanism, and achieving unauthorized code execution. Severity: 5.1 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
May 7, 2026
Impact: code execution