CVE-2018-10561
Dasan GPON Routers Authentication Bypass Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 31 Mar 2022
- A public exploit reference is listed
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.
Key facts
- Published
- 4 May 2018
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 31 Mar 2022
- KEV fix due
- 21 Apr 2022
- EPSS
- 92.818% likely to be exploited in the next 30 days, higher than 99.833% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- The impacted product is end-of-life and should be disconnected if still in use.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 4 May 2018 Published
- 31 Mar 2022 CVE-2018-10561 added to CISA KEV
- 31 Mar 2022 Added to the CISA KEV catalogue