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CVE-2017-8771

31
FAUCET Score

CVE-2017-8771 describes a critical vulnerability in BE126 WIFI repeater 1.0 devices, specifically affecting twsz wifi_repeater firmware. An attacker can gain full control of the device by logging into the default-open Telnet service using hardcoded "root" credentials. This allows for remote code execution and complete compromise of the device. The vulnerability has a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. An attacker could trick a connected user into clicking a malicious link to infect the device. While there is no evidence of active exploitation (not in KEV or Hot List), there is no public exploit code in Metasploit, Nuclei, or ExploitDB. However, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential interest among researchers.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:twsz:wifi_repeater_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0140 is in the 56th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

digitalwhisper.co.il / files/Zines/0x56/DW86-1-RepeaterHack.pdf
Technical DescriptionThird Party Advisory