VDB-362932 · CVE-2026-7257 · EUVD-2026-29377

Zyxel WRE6505 v2 1.00(ABDV.3)C0 Backup Configuration File sensitive information

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Zyxel WRE6505 v2 1.00(ABDV.3)C0. This impacts an unknown function of the component Backup Configuration File Handler. Executing a manipulation can lead to sensitive information. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is tracked as CVE-2026-7257. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Zyxel WRE6505 v2 1.00(ABDV.3)C0. It has been declared as problematic. This vulnerability affects an unknown part of the component Backup Configuration File Handler. The manipulation with an unknown input leads to a sensitive information vulnerability. The CWE definition for the vulnerability is CWE-922. The product stores sensitive information without properly limiting read or write access by unauthorized actors. As an impact it is known to affect confidentiality. CVE summarizes:

** UNSUPPORTED WHEN ASSIGNED ** An insecure storage of sensitive information vulnerability in the configuration file of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow a local attacker with administrator privileges to download and decrypt a backup configuration file.

The advisory is shared for download at zyxel.com. This vulnerability was named CVE-2026-7257 since 04/28/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/12/2026). The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-29377). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Zyxel

Name

WRE6505 v2

Version

1.00(ABDV.3)C0

License

commercial

Support

end of life

Website

Vendor: https://www.zyxel.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.4
CNA Vector (Zyxel): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Sensitive information
CWE: CWE-922 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/28/2026 CVE reserved
05/12/2026 +14 days Advisory disclosed
05/12/2026 +0 days VulDB entry created
05/12/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: zyxel.com

Advisory: zyxel.com
Status: Confirmed

CVE: CVE-2026-7257 (🔒)
GCVE (CVE): GCVE-0-2026-7257
GCVE (VulDB): GCVE-100-362932
EUVD: 🔒

Entryinfo

Created: 05/12/2026 07:52
Updated: 05/12/2026 10:10
Changes: 05/12/2026 07:52 (62), 05/12/2026 10:10 (1)
Complete: 🔍
Cache ID: 216::103