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CVE-2018-8878

MEDIUM
5.3
CVSS Score
Published: February 27, 2020 at 09:12 PM UTC
Updated: June 17, 2026 at 02:05 AM UTC
2 products affected across 2 vendorsASUS FirmwareAsuswrt Merlin

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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%

Description

Information disclosure in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to acquire information on internal network devices' hostnames and MAC addresses by reading the custom_id variable on the blocking.asp page.

Affected

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

ASUS Firmware· ASUS
95%
v < 3.0.0.4.382.50470
Affected range stops below 3.0.0.4.382.50470, so it looks safe — our inference, not a vendor statement
Asuswrt Merlin· Asuswrt Merlin
95%
v < 384.4
Affected range stops below 384.4, so it looks safe — our inference, not a vendor statement

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 (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/outofhere/Research/blob/master/2018/Asus/cve_notes.md

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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