Zyxel WRE6505 Firmware vulnerabilities

5 CVEs affecting Zyxel WRE6505 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-7257, published 2026-05-12.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2026-7256, published 2026-05-12. High severity, CVSS 8.8. EPSS: 2.7% chance of exploitation in the next 30 days. ** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to execute…
CVE-2017-7964, published 2017-04-19. Critical severity, CVSS 10.0. EPSS: 2.5% chance of exploitation in the next 30 days. Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for remote attackers to conduct DNS hijacking attacks by reconfiguring the built-in…
CVE-2026-7255, published 2026-05-12. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. ** 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…
CVE-2026-6058, published 2026-04-21. Medium severity, CVSS 5.7. EPSS: 0.2% chance of exploitation in the next 30 days. ** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to…
CVE-2026-7257, published 2026-05-12. Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days. ** 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…