CVE-2026-40003

MEDIUM

5.1

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.

CVE Details

CVSS v3.1 Score5.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

Attack VectorPHYSICAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published5/7/2026

Last Modified5/13/2026

Sourcenvd

Honeypot Sightings0

Affected Products

zte:zx297520v3zte:zx297520v3_firmware

Weaknesses (CWE)

CWE-787

References

https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/2144487415169560645(psirt@zte.com.cn)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.