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.
Published: 2026-05-07
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 13 May 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Zte zx297520v3
Zte zx297520v3 Firmware
CPEs cpe:2.3:h:zte:zx297520v3:-:*:*:*:*:*:*:*
cpe:2.3:o:zte:zx297520v3_firmware:-:*:*:*:*:*:*:*
Vendors & Products Zte zx297520v3
Zte zx297520v3 Firmware

Thu, 07 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Zte
Zte zx297520v3 Bootrom
Vendors & Products Zte
Zte zx297520v3 Bootrom

Thu, 07 May 2026 02:00:00 +0000

Type Values Removed Values Added
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.
Title USB-based arbitrary memory write vulnerability in ZTE ZX297520V3 soc BootROM
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 5.1, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L'}


Subscriptions

Zte Zx297520v3 Zx297520v3 Bootrom Zx297520v3 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: zte

Published:

Updated: 2026-05-07T01:15:24.863Z

Reserved: 2026-04-08T07:51:26.675Z

Link: CVE-2026-40003

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-07T02:16:03.453

Modified: 2026-05-13T19:19:26.713

Link: CVE-2026-40003

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T21:25:12Z

Weaknesses