CVE-2017-18373
The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has three user accounts with default passwords, including two hardcoded service accounts: one with the username true and password true, and another with the username…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has three user accounts with default passwords, including two hardcoded service accounts: one with the username true and password true, and another with the username user3 and and a long password consisting of a repetition of the string 0123456789. These accounts can be used to login to the web interface, exploit authenticated command injections, and change router settings for malicious purposes.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.38% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Affected
- billion/5200w-t firmware
- Source
- cve@mitre.org
EPSS 5.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txtExploit, Third Party Advisory
- https://seclists.org/fulldisclosure/2017/Jan/40Exploit, Mailing List, Third Party Advisory
- https://ssd-disclosure.com/index.php/archives/2910Exploit, Technical Description, Third Party Advisory
- https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txtExploit, Third Party Advisory
- https://seclists.org/fulldisclosure/2017/Jan/40Exploit, Mailing List, Third Party Advisory
- https://ssd-disclosure.com/index.php/archives/2910Exploit, Technical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.