CVE-2020-28946

Name: CVE-2020-28946
Creator: NVD / NIST
Published: 2020-12-08T20:15:15.713+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2020-28946 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An improper webserver configuration on Plum IK-401 devices with firmware before 1.02 allows an attacker (with network access to the device) to obtain the configuration file, including hashed credential data. Successful exploitation could allow access to hashed credential data with a single unauthenticated GET request.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

An improper webserver configuration on Plum IK-401 devices with firmware before 1.02 allows an attacker (with network access to the device) to obtain the configuration file, including hashed credential data. Successful exploitation could allow access to hashed credential data with a single unauthenticated GET request.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.21%

64.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Plummac	Ik-401 Firmware	< 1.02

References

https://plummac.com/project/ik-401/Product, Vendor Advisory
https://www.cert.pl/news/single/coraz-wiecej-urzadzen-przemyslowych-podlaczonych-do-internetu/Exploit, Third Party Advisory
https://plummac.com/project/ik-401/Product, Vendor Advisory
https://www.cert.pl/news/single/coraz-wiecej-urzadzen-przemyslowych-podlaczonych-do-internetu/Exploit, Third Party Advisory

Timeline

Published: Dec 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28946?

How severe is CVE-2020-28946?

CVE-2020-28946 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28946?

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-2020-28946?

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

Scan your code now

Source: NVD / NIST