Zyxel Wre6505 Firmware — known CVE vulnerabilities

Every CVE whose affected-product data names Zyxel Wre6505 Firmware, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.

CVEs (5)

• CVE-2017-7964 — CVSS 10.0 (critical): Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for remote attackers to…
• CVE-2026-7256 — CVSS 8.8 (high): ** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0…
• CVE-2026-7255 — CVSS 6.5 (medium): ** UNSUPPORTED WHEN ASSIGNED ** An improper restriction of excessive authentication attempts vulnerability in the web management interface…
• CVE-2026-6058 — CVSS 4.5 (medium): ** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version…
• CVE-2026-7257 — CVSS 4.4 (medium): ** UNSUPPORTED WHEN ASSIGNED ** An insecure storage of sensitive information vulnerability in the configuration file of Zyxel WRE6505 v2…