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CVE-2018-10561

CRITICAL
9.8
CVSS Score
Published: May 4, 2018 at 03:00 AM UTC
Updated: June 17, 2026 at 01:34 AM UTC
2 products affected across 1 vendorGpon Router FirmwareGpon Router

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Severity
CRITICAL9.8
Exploitation
CISA KEV
Exploit prediction
EPSS 93%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score92.8%

EPSS (Exploit Prediction Scoring System) estimates a 92.8% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Dasan GPON Routers contain an authentication bypass vulnerability. When combined with CVE-2018-10562, exploitation can allow an attacker to perform remote code execution.

Required Action
The impacted product is end-of-life and should be disconnected if still in use.
Ransomware Use
Unknown
Added to KEV
Mar 31, 2022
Remediation Due
Apr 21, 2022
1650 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2018-10561

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Gpon Router Firmware· Dasannetworks
95%
All versions
dasannetworks-gpon-router (same device)
Gpon Router· Dasannetworksdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/107053
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.exploit-db.com/exploits/44576/
x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
Source: [email protected]
https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10561

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287

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