CVE-2024-30389

EUVD-2024-28310
An Incorrect Behavior Order vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on EX4300 Series allows an unauthenticated, network-based attacker to cause an integrity impact to networks downstream of the vulnerable device.

When an output firewall filter is applied to an interface it doesn't recognize matching packets but permits any traffic.
This issue affects Junos OS 21.4 releases from 21.4R1 earlier than 21.4R3-S6.
This issue does not affect Junos OS releases earlier than 21.4R1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
Affected Products (NVD)
VendorProductVersion
juniperjunos
21.4:r1
juniperjunos
21.4:r1-s1
juniperjunos
21.4:r1-s2
juniperjunos
21.4:r2
juniperjunos
21.4:r2-s1
juniperjunos
21.4:r2-s2
juniperjunos
21.4:r3
juniperjunos
21.4:r3-s1
juniperjunos
21.4:r3-s2
juniperjunos
21.4:r3-s3
juniperjunos
21.4:r3-s4
juniperjunos
21.4:r3-s5
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
juniperjunos
21.4 ≤
𝑥
< 21.4r3-s6
ADP