A NULL Pointer Dereference vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved on ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7348, ACX7509 devices allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). Whenever specific valid multicast traffic is received on any layer 3 interface the evo-pfemand process crashes and restarts. Continued receipt of specific valid multicast traffic results in a sustained Denial of Service (DoS) attack. This issue affects Junos OS Evolved on ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7348, ACX7509: * from 23.2R2-EVO before 23.2R2-S4-EVO, * from 23.4R1-EVO before 23.4R2-EVO. This issue affects IPv4 and IPv6. This issue does not affect Junos OS Evolved ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7348, ACX7509 versions before 23.2R2-EVO.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://supportportal.juniper.net/JSA103156 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · juniperNVD modified 2026-10-08 13:10
Affected (CPE criteria) 7
cpe:2.3:o:juniper:junos_os_evolved:23.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s2:*:*:*:*:*:*
References 1
- https://supportportal.juniper.net/JSA103156 Vendor Advisory