CVE-2024-30389
moderate-risk
Published 2024-04-12
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.
Do I need to act?
-
0.16% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.8/10
Medium
NETWORK
/ LOW complexity
Affected Vendors
References (4)
Vendor Advisory
http://supportportal.juniper.net/JSA79185
Vendor Advisory
http://supportportal.juniper.net/JSA79185
40
/ 100
moderate-risk
Severity
22/34 · High
Exploitability
1/34 · Minimal
Exposure
17/34 · Moderate