CVE-2023-39808

Name: CVE-2023-39808
Creator: NVD / NIST
Published: 2023-08-21T01:15:09.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-39808 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. N.V.K.INTER CO., LTD. (NVK) iBSG v3.5 was discovered to contain a hardcoded root password which allows attackers to login with root privileges via the SSH service.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

N.V.K.INTER CO., LTD. (NVK) iBSG v3.5 was discovered to contain a hardcoded root password which allows attackers to login with root privileges via the SSH service.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Nvki	Intelligent Broadband Subscriber Gateway	3.5

References

http://ibsg.comNot Applicable
http://nvkinter.comBroken Link
http://ibsg.comNot Applicable
http://nvkinter.comBroken Link

Timeline

Published: Aug 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39808?

N.V.K.INTER CO., LTD. (NVK) iBSG v3.5 was discovered to contain a hardcoded root password which allows attackers to login with root privileges via the SSH service.

How severe is CVE-2023-39808?

CVE-2023-39808 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39808?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-39808?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST