CVE-2024-39552

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a network based, unauthenticated attacker to cause the RPD process to crash leading to a Denial of Service (DoS).

When a malformed BGP UPDATE packet is received over an established BGP session, RPD crashes and restarts.

Continuous receipt of the malformed BGP UPDATE messages will create a sustained Denial of Service (DoS) condition for impacted devices.

This issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations. This issue requires a remote attacker to have at least one established BGP session.

This issue affects: Juniper Networks Junos OS: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S6; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R2.

Juniper Networks Junos OS Evolved: * All versions earlier than 21.2R3-S7; * 21.3-EVO versions earlier than 21.3R3-S5; * 21.4-EVO versions earlier than 21.4R3-S8; * 22.1-EVO versions earlier than 22.1R3-S4; * 22.2-EVO versions earlier than 22.2R3-S3; * 22.3-EVO versions earlier than 22.3R3-S2; * 22.4-EVO versions earlier than 22.4R3; * 23.2-EVO versions earlier than 23.2R2.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-755

Affected software

VendorProductVersions
Juniper NetworksJunos OS< 20.4R3-S9; >= 21.2, < 21.2R3-S7; >= 21.3, < 21.3R3-S6; >= 21.4, < 21.4R3-S6; >= 22.1, < 22.1R3-S4; >= 22.2, < 22.2R3-S3; >= 22.3, < 22.3R3-S2; >= 22.4, < 22.4R3; >= 23.2, < 23.2R2
Juniper NetworksJunos OS Evolved< 21.2R3-S7-EVO; >= 21.3-EVO, < 21.3R3-S5-EVO; >= 21.4-EVO, < 21.4R3-S8-EVO; >= 22.1-EVO, < 22.1R3-S4-EVO; >= 22.2-EVO, < 22.2R3-S3-EVO; >= 22.3-EVO, < 22.3R3-S2-EVO; >= 22.4-EVO, < 22.4R3-EVO; >= 23.2-EVO, < 23.2R2-EVO; >= 23.4-EVO, < 23.4R1-EVO
juniperjunos>= 21.2, < 21.2r3-s7; >= 21.3, < 21.3r3-s6; >= 21.4, < 21.4r3-s6; >= 22.2, < 22.2r3-s3; >= 22.3, < 22.3r3-s2; >= 22.4, < 22.4r3; >= 23.2, < 23.2r2
juniperjunos< 20.4r3-s9
juniperjunos>= 22.1, < 22.1r3-s4
juniperjunos_os_evolved>= 21.3, < 21.3r3-s5; >= 21.4, < 21.4r3-s8; >= 22.1, < 22.1r3-s4; >= 22.2, < 22.2r3-s3; >= 22.3, < 22.3r3-s2; >= 22.4, < 22.4r3; >= 23.2, < 23.2r2; >= 23.4, < 23.4r1
juniperjunos_os_evolved< 21.2r3-s7

References

Timeline

Published
Jul 11, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2024-39552: High severity, CVSS 7.5 | Vulnix