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CVE-2023-44199

7.5 · HIGH

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows a network-based, unauthenticated attacke…

Published Oct 13, 2023CWE-754EPSS 0.64%

Overview

CVE-2023-44199 is a high-severity vulnerability. It was published on October 13, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

On Junos MX Series platforms with Precision Time Protocol (PTP) configured, a prolonged routing protocol churn can lead to an FPC crash and restart.

This issue affects Juniper Networks Junos OS on MX Series:

* All versions prior to 20.4R3-S4;

* 21.1 version 21.1R1 and later versions;

* 21.2 versions prior to 21.2R3-S2;

* 21.3 versions prior to 21.3R3-S5;

* 21.4 versions prior to 21.4R3;

* 22.1 versions prior to 22.1R3;

* 22.2 versions prior to 22.2R1-S1, 22.2R2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsupportportal.juniper.net/JSA73165Refsupportportal.juniper.net/JSA73165

How CyberStrike helps

Frequently asked questions

What is CVE-2023-44199?

CVE-2023-44199 is a high-severity vulnerability. It was published on October 13, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-44199?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-44199?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-44199?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-44199 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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