CVE-2024-39553

6.5 · MEDIUM

Published Jul 11, 2024 juniper CWE-668 EPSS 0.40% (33th pctl) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Overview

CVE-2024-39553 is a medium-severity vulnerability affecting juniper junos_os_evolved. It was published on July 11, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to send arbitrary data to the device, which leads msvcsd process to crash with limited availability impacting Denial of Service (DoS) and allows unauthorized network access to the device, potentially impacting system integrity.

This issue only happens when inline jflow is configured.

This does not impact any forwarding traffic. The impacted services MSVCS-DB app crashes momentarily and recovers by itself.

This issue affects Juniper Networks Junos OS Evolved:

* 21.4 versions earlier than 21.4R3-S7-EVO;

* 22.2 versions earlier than 22.2R3-S3-EVO;

* 22.3 versions earlier than 22.3R3-S2-EVO;

* 22.4 versions earlier than 22.4R3-EVO;

* 23.2 versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.

Remediation

Check the references section for vendor advisories and patches from juniper. Update junos_os_evolved to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status

References

Ref supportportal.juniper.net/JSA79101 Ref supportportal.juniper.net/JSA79101

Frequently Asked Questions

What is CVE-2024-39553?

CVE-2024-39553 is a medium-severity vulnerability affecting juniper junos_os_evolved. It was published on July 11, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-39553?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-39553?

How can CyberStrike help with CVE-2024-39553?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-39553 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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HackBrowser

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