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CVE-2026-7255

Quick assessment

Affected
Zyxel WRE6505 v2 firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zyxel WRE6505是中国合勤（Zyxel）公司的一款无线信号扩展设备。 Zyxel WRE6505 v2 V1.00(ABDV.3)C0版本存在安全漏洞，该漏洞源于Web管理接口对认证尝试次数限制不当，可能导致相邻攻击者暴力破解密码并绕过身份验证。

CVSS 6.5 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force

Affected Version Matrix 1

VendorProduct Version RangeStatus
Zyxel WRE6505 v2 firmware V1.00(ABDV.3)C0 affected
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I. Basic Information for CVE-2026-7255

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
** UNSUPPORTED WHEN ASSIGNED ** An improper restriction of excessive authentication attempts vulnerability in the web management interface of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to brute-force the password and bypass authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel WRE6505 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel WRE6505是中国合勤（Zyxel）公司的一款无线信号扩展设备。 Zyxel WRE6505 v2 V1.00(ABDV.3)C0版本存在安全漏洞，该漏洞源于Web管理接口对认证尝试次数限制不当，可能导致相邻攻击者暴力破解密码并绕过身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zyxel WRE6505 v2 firmware V1.00(ABDV.3)C0 -

II. Public POCs for CVE-2026-7255

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III. Intelligence Information for CVE-2026-7255

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Same Patch Batch · Zyxel · 2026-05-12 · 4 CVEs total

CVE-2026-7256 8.8 HIGH Zyxel WRE6505 操作系统命令注入漏洞
CVE-2026-7287 7.5 HIGH Zyxel NWA1100-N 安全漏洞
CVE-2026-7257 4.4 MEDIUM Zyxel WRE6505 安全漏洞

IV. Related Vulnerabilities

Same product: WRE6505 v2 firmware
Same vendor: Zyxel
Same weakness: CWE-307

V. Comments for CVE-2026-7255

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