CVE-2023-44185

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

* Juniper Networks Junos OS: * All versions prior to 20.4R3-S6; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S3; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R2-S2, 22.1R3; * 22.2 versions prior to 22.2R2-S1, 22.2R3; * 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

* All versions prior to 20.4R3-S6-EVO; * 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO; * 21.3-EVO versions prior to 21.3R3-S3-EVO; * 21.4-EVO versions prior to 21.4R3-S3-EVO; * 22.1-EVO versions prior to 22.1R3-EVO; * 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; * 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.

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-20

Affected software

VendorProductVersions
Juniper NetworksJunos OS< 20.4R3-S6; >= 21.1, < 21.1R3-S5; >= 21.2, < 21.2R3-S4; >= 21.3, < 21.3R3-S3; >= 21.4, < 21.4R3-S3; >= 22.1, < 22.1R2-S2, 22.1R3; >= 22.2, < 22.2R2-S1, 22.2R3; >= 22.3, < 22.3R1-S2, 22.3R2
Juniper NetworksJunos OS Evolved< 20.4R3-S6-EVO; >= 21.1R1-EVO, < 21.1*-EVO; >= 21.2-EVO, < 21.2R3-S4-EVO; >= 21.3-EVO, < 21.3R3-S3-EVO; >= 21.4-EVO, < 21.4R3-S3-EVO; >= 22.1-EVO, < 22.1R3-EVO; >= 22.2-EVO, < 22.2R2-S1-EVO, 22.2R3-EVO; >= 22.3-EVO, < 22.3R1-S2-EVO, 22.3R2-EVO

References

Timeline

Published
Oct 13, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-44185: High severity, CVSS 7.5 | Vulnix