How severe is CVE-2024-21613?

CVE-2024-21613 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-21613 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21613?

CVE-2024-21613 primarily affects Juniper Junos. In total, 76 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21613?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21613 have an EU (EUVD) identifier?

Yes. CVE-2024-21613 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19261.

When was CVE-2024-21613 published?

CVE-2024-21613 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2024-21613

CVE-2024-21613 is a medium-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 6.5. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19261
Weakness: CWE-401
Affected product: Juniper Junos
Published: 2024-01-12
Last modified: 2026-06-17

Description

A Missing Release of Memory after Effective Lifetime vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when traffic engineering is enabled for OSPF or ISIS, and a link flaps, a patroot memory leak is observed. This memory leak, over time, will lead to an rpd crash and restart. The memory usage can be monitored using the below command. user@host> show task memory detail | match patroot This issue affects: Juniper Networks Junos OS * All versions earlier than 21.2R3-S3; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S3; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R3. Juniper Networks Junos OS Evolved * All versions earlier than 21.3R3-S5-EVO; * 21.4 versions earlier than 21.4R3-EVO; * 22.1 versions earlier than 22.1R3-EVO; * 22.2 versions earlier than 22.2R3-EVO.

Frequently asked questions

What is CVE-2024-21613?: A Missing Release of Memory after Effective Lifetime vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when traffic engineering is enabled for OSPF or ISIS, and a link flaps, a patroot memory leak is observed. This memory leak, over time, will lead to an rpd crash and restart. The memory usage can be monitored using the below command. user@host> show task memory detail | match patroot This issue affects: Juniper Networks Junos OS * All versions earlier than 21.2R3-S3; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S3; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R3. Juniper Networks Junos OS Evolved * All versions earlier than 21.3R3-S5-EVO; * 21.4 versions earlier than 21.4R3-EVO; * 22.1 versions earlier than 22.1R3-EVO; * 22.2 versions earlier than 22.2R3-EVO.
How severe is CVE-2024-21613?: CVE-2024-21613 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-21613 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21613?: CVE-2024-21613 primarily affects Juniper Junos. In total, 76 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21613 have an EU (EUVD) identifier?: Yes. CVE-2024-21613 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19261.
When was CVE-2024-21613 published?: CVE-2024-21613 was published on 2024-01-12 and last updated on 2026-06-17.

References

Affected products (76)

cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:*

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