CVE-2015-7257

ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow remote...

7.5 HighPublic exploit

ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow remote authenticated non-administrator users to change the admin password by intercepting an outgoing password change request, and changing the username parameter from "support" to "admin".

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

6.71%Up 5.6 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2015-7257
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 8.5 HighAV:N/AC:M/Au:S/C:C/I:C/A:C
Weakness: CWE-640
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-7257
Updated: 2026-11-02

EUVDEUVD-2015-7188 No score

Record: EUVD-2015-7188
Updated: 2026-11-03

GitHub AdvisoriesGHSA-748x-222r-qc52 7.5

ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow remote...

Record: GHSA-748x-222r-qc52
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-640
Updated: 2026-11-02

Affected products

zte zxv10 w300 firmware

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	ZTE ADSL ZXV10 W300 Modems - Multiple Vulnerabilities	2015-11-20

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-7257 is a high vulnerability (CVSS 7.5) in Zte Zxv10 W300 Firmware, published August 24, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 6.71%, the 93rd percentile. No source names a fixed version.