CVE-2026-40003
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
49/100
Published: 2026-05-07
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Physical
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| zte | zx297520v3_firmware | - |
References & Advisories (1)
Vendor Advisory