CVE-2021-39289

Name: CVE-2021-39289
Creator: NVD / NIST
Published: 2021-08-23T05:15:08.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2021-39289 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Certain NetModule devices have Insecure Password Handling (cleartext or reversible encryption), These models with firmware before 4.3.0.113, 4.4.0.111, and 4.5.0.105 are affected: NB800, NB1600, NB1601, NB1800, NB1810, NB2700, NB2710, NB2800, NB2810, NB3700, NB3701, NB3710, NB3711, NB3720, and NB3800.. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

Certain NetModule devices have Insecure Password Handling (cleartext or reversible encryption), These models with firmware before 4.3.0.113, 4.4.0.111, and 4.5.0.105 are affected: NB800, NB1600, NB1601, NB1800, NB1810, NB2700, NB2710, NB2800, NB2810, NB3700, NB3701, NB3710, NB3711, NB3720, and NB3800.

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

0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Netmodule	Netmodule Router Software	< 4.3.0.113
Netmodule	Netmodule Router Software	>= 4.4.0.0, < 4.4.0.111
Netmodule	Netmodule Router Software	>= 4.5.0.0, < 4.5.0.105

References

http://seclists.org/fulldisclosure/2021/Aug/22Exploit, Mailing List, Third Party Advisory
https://www.netmodule.comVendor Advisory
http://seclists.org/fulldisclosure/2021/Aug/22Exploit, Mailing List, Third Party Advisory
https://www.netmodule.comVendor Advisory

Timeline

Published: Aug 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39289?

How severe is CVE-2021-39289?

CVE-2021-39289 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39289?

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-2021-39289?

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

Scan your code now

Source: NVD / NIST