CVE-2017-16566
On Jooan IP Camera A5 2.3.36 devices, an insecure FTP server does not require authentication, which allows remote attackers to read or replace core system files including those used for authentication (such as passwd and shadow).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
On Jooan IP Camera A5 2.3.36 devices, an insecure FTP server does not require authentication, which allows remote attackers to read or replace core system files including those used for authentication (such as passwd and shadow). This can be abused to take full root level control of the device.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.56% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- qacctv/jooan a5 ip camera firmware
- Source
- cve@mitre.org
EPSS 2.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://siggyd.github.io/Advisories/CVE-2017-16566Issue Tracking, Third Party Advisory
- https://siggyd.github.io/Advisories/CVE-2017-16566Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.