How severe is CVE-2024-21614?

CVE-2024-21614 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-21614 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21614?

CVE-2024-21614 primarily affects Juniper Junos. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21614?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-21614 have an EU (EUVD) identifier?

Yes. CVE-2024-21614 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19262.

When was CVE-2024-21614 published?

CVE-2024-21614 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2024-21614

CVE-2024-21614 is a high-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-754.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19262
Weakness: CWE-754
Affected product: Juniper Junos
Published: 2024-01-12
Last modified: 2026-06-17

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause rpd to crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when NETCONF and gRPC are enabled, and a specific query is executed via Dynamic Rendering (DREND), rpd will crash and restart. Continuous execution of this specific query will cause a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS * 22.2 versions earlier than 22.2R2-S2, 22.2R3; * 22.3 versions earlier than 22.3R2, 22.3R3. Juniper Networks Junos OS Evolved * 22.2 versions earlier than 22.2R2-S2-EVO, 22.2R3-EVO; * 22.3 versions earlier than 22.3R2-EVO, 22.3R3-EVO. This issue does not affect Juniper Networks: Junos OS versions earlier than 22.2R1; Junos OS Evolved versions earlier than 22.2R1-EVO.

Frequently asked questions

What is CVE-2024-21614?: An Improper Check for Unusual or Exceptional Conditions vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause rpd to crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when NETCONF and gRPC are enabled, and a specific query is executed via Dynamic Rendering (DREND), rpd will crash and restart. Continuous execution of this specific query will cause a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS * 22.2 versions earlier than 22.2R2-S2, 22.2R3; * 22.3 versions earlier than 22.3R2, 22.3R3. Juniper Networks Junos OS Evolved * 22.2 versions earlier than 22.2R2-S2-EVO, 22.2R3-EVO; * 22.3 versions earlier than 22.3R2-EVO, 22.3R3-EVO. This issue does not affect Juniper Networks: Junos OS versions earlier than 22.2R1; Junos OS Evolved versions earlier than 22.2R1-EVO.
How severe is CVE-2024-21614?: CVE-2024-21614 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-21614 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21614?: CVE-2024-21614 primarily affects Juniper Junos. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21614?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-21614 have an EU (EUVD) identifier?: Yes. CVE-2024-21614 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19262.
When was CVE-2024-21614 published?: CVE-2024-21614 was published on 2024-01-12 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*

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