CVE-2017-8771
CVE-2017-8771 is a critical-severity vulnerability in Twsz Wifi Repeater Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-798
- Affected product: Twsz Wifi Repeater Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2017-8771?
- 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.
- How severe is CVE-2017-8771?
- CVE-2017-8771 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-8771 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-8771?
- CVE-2017-8771 affects Twsz Wifi Repeater Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-8771?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2017-8771 published?
- CVE-2017-8771 was published on 2017-09-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:twsz:wifi_repeater_firmware:-:*:*:*:*:*:*:*
More vulnerabilities in Twsz Wifi Repeater Firmware
- CVE-2017-8772 — Critical (CVSS 9.8): On BE126 WIFI repeater 1.0 devices, an attacker can log into telnet (which is open by default) with default credentials…
- CVE-2017-13713 — High (CVSS 8.8): T&W WIFI Repeater BE126 allows remote authenticated users to execute arbitrary code via shell metacharacters in the…
- CVE-2017-8770 — High (CVSS 7.5): There is LFD (local file disclosure) on BE126 WIFI repeater 1.0 devices that allows attackers to read the entire…
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