CVE-2024-30389
MEDIUMDescription
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.
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
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 29% of all known CVEs.
References
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 |
Common questions
How do I fix 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.
Is CVE-2024-30389 being actively exploited?
Not that we know of. CVE-2024-30389 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.36% is the estimated probability that it will be exploited in the next 30 days. That is higher than 29% of all scored CVEs.
How severe is CVE-2024-30389?
CVE-2024-30389 has a CVSS v3 base score of 5.8, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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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.