CVE-2018-18473
A hidden backdoor on PATLITE NH-FB Series devices with firmware version 1.45 or earlier, NH-FV Series devices with firmware version 1.10 or earlier, and NBM Series devices with firmware version 1.09 or earlier allow attackers to enable an SSH daemon via…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A hidden backdoor on PATLITE NH-FB Series devices with firmware version 1.45 or earlier, NH-FV Series devices with firmware version 1.10 or earlier, and NBM Series devices with firmware version 1.09 or earlier allow attackers to enable an SSH daemon via the "kankichi" or "kamiyo4" password to the _secret1.htm URI. Subsequently, the default password of root for the root account allows an attacker to conduct remote code execution and as a result take over the system.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.65% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Affected
- patlite/nbm-d88n firmware · patlite/nhl-3fb1 firmware · patlite/nhl-3fv1n firmware
- Source
- cve@mitre.org
EPSS 5.6% 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://herolab.usd.de/wp-content/uploads/sites/4/usd20180020.txtExploit, Third Party Advisory
- https://www.patlite.com/support/Security_Informationtest.html
- https://herolab.usd.de/wp-content/uploads/sites/4/usd20180020.txtExploit, Third Party Advisory
- https://www.patlite.com/support/Security_Informationtest.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.