What is the CVSS score of CVE-2017-8771?

CVE-2017-8771 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Wifi Repeater Firmware CVE-2017-8771

CRITICAL

Use of Hard-coded Credentials (CWE-798)

2017-09-20 cve@mitre.org

Authentication Bypass Wifi Repeater Firmware

9.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 20, 2017 - 14:29 cve.org

CRITICAL 9.8

DescriptionCVE.org

On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default credentials as root (username:"root" password:"root"). The attacker can make a user that is connected to the repeater click on a malicious link that will log into the telnet and will infect the device with malicious code.

AnalysisAI

On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default credentials as root (username:"root" password:"root"). Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default credentials as root (username:"root" password:"root"). The attacker can make a user that is connected to the repeater click on a malicious link that will log into the telnet and will infect the device with malicious code. Affected products include: Twsz Wifi Repeater Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.