VYPR
Medium severity6.5NVD Advisory· Published Apr 12, 2024· Updated Jun 17, 2026

CVE-2024-30403

CVE-2024-30403

Description

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

When Layer 2 traffic is sent through a logical interface, MAC learning happens. If during this process, the interface flaps, an Advanced Forwarding Toolkit manager (evo-aftmand-bt) core is observed. This leads to a PFE restart. The crash reoccurs if the same sequence of events happens, which will lead to a sustained DoS condition.

This issue affects Juniper Networks Junos OS Evolved 23.2-EVO versions earlier than 23.2R1-S1-EVO, 23.2R2-EVO.

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Affected products

4
  • cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
    • (no CPE)range: < 23.2R1-S1-EVO, < 23.2R2-EVO
    • (no CPE)range: 23.2-EVO

Patches

Vulnerability mechanics

References

2

News mentions

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