Which software is affected by CVE-2021-0248?

Juniper JUNOS versions up to and including 19.1 are affected by CVE-2021-0248.

Is NFX NextGen Software affected by CVE-2021-0248?

No, NFX NextGen Software is not affected by CVE-2021-0248.

How severe is CVE-2021-0248?

CVE-2021-0248 has a severity rating of 10 (critical).

How can the CVE-2021-0248 vulnerability be fixed?

To fix CVE-2021-0248, it is recommended to upgrade Juniper JUNOS to a version higher than 19.1.

Vulnerability/
CVE-2021-0248

critical

CWE

798

14/4/2021

3/8/2024

CVE-2021-0248: NFX Series: Hard-coded credentials allow an attacker to take control of any instance through administrative interfaces.

Q: What is CVE-2021-0248?

CVE-2021-0248 is a vulnerability in Juniper Networks Junos OS that allows an attacker to take over any instance of an NFX deployment by exploiting hard-coded credentials in administrative interfaces.

First published: Wed Apr 14 2021(Updated: )

This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX Series. No other platforms besides NFX Series devices are affected.

Credit: sirt@juniper.net

Affected Software	Affected Version	How to fix
Juniper JUNOS	<19.1
Juniper JUNOS	=19.1
Juniper Nfx150
Juniper Nfx250
Juniper Nfx350

Remedy

The following software releases have been updated to resolve this specific issue: 19.1R1, and all subsequent releases.

Never miss a vulnerability like this again

Reference Links

https://kb.juniper.net/JSA11141

Frequently Asked Questions

What is CVE-2021-0248?
CVE-2021-0248 is a vulnerability in Juniper Networks Junos OS that allows an attacker to take over any instance of an NFX deployment by exploiting hard-coded credentials in administrative interfaces.
Which software is affected by CVE-2021-0248?
Juniper JUNOS versions up to and including 19.1 are affected by CVE-2021-0248.
Is NFX NextGen Software affected by CVE-2021-0248?
No, NFX NextGen Software is not affected by CVE-2021-0248.
How severe is CVE-2021-0248?
CVE-2021-0248 has a severity rating of 10 (critical).
How can the CVE-2021-0248 vulnerability be fixed?
To fix CVE-2021-0248, it is recommended to upgrade Juniper JUNOS to a version higher than 19.1.

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