Vulnerability in Nvki Intelligent Broadband Subscriber Gateway
CVE-2023-39808
N.V.K.INTER CO., LTD. (NVK) iBSG v3.5 was discovered to contain a hardcoded root password that allows attackers to login with root privileges via the SSH service. The cleartext password corresponding to the $1$4Tmm01jl$7HRvcW.bz7uGmX9hiQWvR hash was not determined by the vulnerability discoverer.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Nvki Intelligent Broadband Subscriber Gateway — versions 3.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Not Applicable)
- af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
- github.com/maride
- sec.maride.cc/posts/ibsg/
Frequently asked questions
- What is CVE-2023-39808?
- CVE-2023-39808 is a critical-severity vulnerability in Nvki Intelligent Broadband Subscriber Gateway, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2023-08-21.
- How severe is CVE-2023-39808?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-39808 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.