CVE-2018-10561

CRITICAL(9.8)KEVLikely Exploited

Dasan GPON Routers Authentication Bypass Vulnerability

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.

KEV Information

Vendor
Dasan
Product
Gigabit Passive Optical Network (GPON) Routers
Date Added
March 31, 2022
Due Date
April 21, 2022
Required Action
The impacted product is end-of-life and should be disconnected if still in use.

CVSS Score

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HOpen in Calculator
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9

CWEs

Affected Products

VendorProductVersion
dasannetworksgpon router firmware-

Multiple CVSS Assessments

Source: [email protected](Primary)
9.8
CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0(Secondary)
9.8
CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

CVSS Score

9.8
CRITICAL(9.8)

EPSS Score

EPSS Score92.89%
EPSS Percentile99.8%

Dates

PublishedMay 4, 2018
Last ModifiedJune 17, 2026
StatusAnalyzed
CVSS Versionv3.1

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