CVE-2020-1650

HIGH

Juniper Junos OS on MX Series - Denial of Service via MS-PIC Component Crash

Title source: llm
STIX 2.1

Description

On Juniper Networks Junos MX Series with service card configured, receipt of a stream of specific packets may crash the MS-PIC component on MS-MIC or MS-MPC. By continuously sending these specific packets, an attacker can repeatedly bring down MS-PIC on MS-MIC/MS-MPC causing a prolonged Denial of Service. This issue affects MX Series devices using MS-PIC, MS-MIC or MS-MPC service cards with any service configured. This issue affects Juniper Networks Junos OS on MX Series: 17.2R2-S7; 17.3R3-S4, 17.3R3-S5; 17.4R2-S4 and the subsequent SRs (17.4R2-S5, 17.4R2-S6, etc.); 17.4R3; 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8; 18.2R3, 18.2R3-S1, 18.2R3-S2; 18.3R2 and the SRs based on 18.3R2; 18.4R2 and the SRs based on 18.4R2; 19.1R1 and the SRs based on 19.1R1; 19.2R1 and the SRs based on 19.2R1; 19.3R1 and the SRs based on 19.3R1.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://kb.juniper.net/JSA11037

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 60.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (9)
juniper/junos 17.2 r2-s7
juniper/junos 17.4 r2-s4 (7 CPE variants)
juniper/junos 18.1 r1 (8 CPE variants)
juniper/junos 18.2 r1 (7 CPE variants)
juniper/junos 18.3 r2 (4 CPE variants)
juniper/junos 18.4 r2 (4 CPE variants)
juniper/junos 19.1 r1 (4 CPE variants)
juniper/junos 19.2 r1 (3 CPE variants)
juniper/junos 19.3 r1 (2 CPE variants)
Published Jul 17, 2020
Tracked Since Feb 18, 2026