CVEvulnerability

CVE-2026-40003

6.8 MEDIUM Published 2026-05-07 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-07
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.1 MEDIUM — CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

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.

Affected configurations

• zte zx297520v3 firmware

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References