An issue was discovered on Dasan GPON home routers.
Priority CRITICAL 100Exploited in the wildCWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2022-03-31CISA due date 2022-04-21
EPSS 0.92818 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dasannetworks:gpon_router_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Dasan Networks |
| cpe:2.3:h:dasannetworks:gpon_router:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Dasan Networks |
- cpe:2.3:o:dasannetworks:gpon_router_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Dasan Networks
- cpe:2.3:h:dasannetworks:gpon_router:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dasan Networks
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-03-31 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2018-10561
- 2026-10-03 Alias added: GHSA-9f5c-v3c9-rfhg
References
More Dasan vulnerabilities
- TI-2018-07455 An issue was discovered on Dasan GPON home routers. KEVCVSS 3.1CRITICAL 9.8
- TI-2018-12703 DASAN H660GW devices do not implement any CSRF protection mechanism. CVSS 3.0HIGH 8.8
- TI-2018-12702 DASAN H660GW devices have Stored XSS in the Port Forwarding functionality. CVSS 3.0MEDIUM 4.8
Sources
- CVE-2018-10561 · CVE Program
- CVE-2018-10561 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-9f5c-v3c9-rfhg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences