What’s Vulnerable › Vulnerabilities

CVE-2018-10561: Dasan GPON Routers Authentication Bypass Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-31
• EPSS: 92.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-05-04 · updated 2026-06-17
• Weakness: CWE-287

Description

An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?images" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device.

Affected products

• Dasannetworks Gpon Router Firmware: all versions

References

• http://www.securityfocus.com/bid/107053
• https://www.exploit-db.com/exploits/44576/
• https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
• http://www.securityfocus.com/bid/107053
• https://www.exploit-db.com/exploits/44576/
• https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10561

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