Vulnerability Monitor

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CVE-2015-7259

ZTE ADSL ZXV10 W300 modems W300V2.1.0f_ER7_PE_O57 and W300V2.1.0h_ER7_PE_O57 allow user accounts to have multiple valid username and password pairs, which allows remote authenticated users to login to a target account via any of its username and password pairs.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 2 products from zte, from zte organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-08-24T20:29:00.473

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-255

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	zte	zxv10_w300_firmware	w300v2.1.0f_er7_pe_o57	Yes
Hardware	zte	zxv10_w300	-	No
Operating System	zte	zxv10_w300_firmware	w300v2.1.0h_er7_pe_o57	Yes
Hardware	zte	zxv10_w300	-	No

References

http://packetstormsecurity.com/files/134336/ZTE-ADSL-Authorization-Bypass-Information-Disclosure.html Third Party Advisory, VDB Entry ([email protected])
http://packetstormsecurity.com/files/134493/ZTE-ADSL-ZXV10-W300-Authorization-Disclosure-Backdoor.html Third Party Advisory, VDB Entry ([email protected])
http://seclists.org/fulldisclosure/2015/Nov/48 Mailing List, Third Party Advisory ([email protected])
https://www.exploit-db.com/exploits/38772/ Third Party Advisory, VDB Entry ([email protected])
http://packetstormsecurity.com/files/134336/ZTE-ADSL-Authorization-Bypass-Information-Disclosure.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/134493/ZTE-ADSL-ZXV10-W300-Authorization-Disclosure-Backdoor.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2015/Nov/48 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/38772/ Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For zte's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.