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High severity7.5NVD Advisory· Published Jul 11, 2024· Updated Jun 17, 2026

CVE-2024-39531

CVE-2024-39531

Description

An Improper Handling of Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows a network-based, unauthenticated attacker to cause a Denial-of-Service (DoS).

If a value is configured for DDoS bandwidth or burst parameters for any protocol in a queue, all protocols which share the same queue will have their bandwidth or burst value changed to the new value. If, for example, OSPF was configured with a certain bandwidth value, ISIS would also be limited to this value. So inadvertently either the control plane is open for a high level of specific traffic which was supposed to be limited to a lower value, or the limit for a certain protocol is so low that chances to succeed with a volumetric DoS attack are significantly increased.

This issue affects Junos OS Evolved on ACX 7000 Series:

  • All versions before 21.4R3-S7-EVO,
  • 22.1 versions before 22.1R3-S6-EVO,
  • 22.2 versions before 22.2R3-S3-EVO,
  • 22.3 versions before 22.3R3-S3-EVO,
  • 22.4 versions before 22.4R3-S2-EVO,
  • 23.2 versions before 23.2R2-EVO,
  • 23.4

versions

before 23.4R1-S1-EVO, 23.4R2-EVO.

Affected products

65
  • Juniper Networks/OS Evolved65 versions
    cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*+ 64 more
    • cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*range: <21.4
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s5:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s6:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s5:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.1:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.2:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.3:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:22.4:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:*
    • (no CPE)range: <21.4R3-S7-EVO, <22.1R3-S6-EVO, <22.2R3-S3-EVO, <22.3R3-S3-EVO, <22.4R3-S2-EVO, <23.2R2-EVO, <23.4R1-S1-EVO, <23.4R2-EVO
    • (no CPE)range: 0

Patches

Vulnerability mechanics

References

1

News mentions

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