Is CVE-2024-30389 in the CISA KEV catalog?

No. CVE-2024-30389 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-30389?

CVE-2024-30389 has a CVSS v3 base score of 5.8 (MEDIUM).

What is the EPSS score for CVE-2024-30389?

CVE-2024-30389 has an EPSS score of 0.36% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2024-30389?

No published fix for CVE-2024-30389 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2024-30389

MEDIUM

5.8

CVSS v3

NVD

Description

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.

CWE-696

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Exploit Intelligence

0.36%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Vendor Advisory1

supportportal.juniper.net

Issue Tracking1

first.org

Related Vulnerabilities

Other CWE-696 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-33224	High	7.2	2.8%	-	Fix
CVE-2021-22569	High	7.5	1.7%	-	Fix
CVE-2021-31379	High	7.5	1.3%	-	-
CVE-2023-44386	Medium	5.3	0.6%	-	Fix
CVE-2025-31485	High	7.5	0.6%	-	-
CVE-2025-0150	High	7.1	0.5%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-02-06.