CVE-2020-1601

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Certain types of malformed Path Computation Element Protocol (PCEP) packets when received and processed by a Juniper Networks Junos OS device serving as a Path Computation Client (PCC) in a PCEP environment using Juniper's path computational element protocol daemon (pccd) process allows an attacker to cause the pccd process to crash and generate a core file thereby causing a Denial of Service (DoS). Continued receipt of this family of malformed PCEP packets will cause an extended Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1F6-S13, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D180 on SRX Series; 15.1X53 versions prior to 15.1X53-D238, 15.1X53-D496, 15.1X53-D592; 16.1 versions prior to 16.1R7-S4; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R2-S11, 17.1R3; 17.2 versions prior to 17.2R1-S9; 17.2 version 17.2R2 and later prior to 17.2R3-S2; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R2-S2, 17.4R3; 18.1 versions prior to 18.1R3-S2; 18.2 versions prior to 18.2R2-S6, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. This issue does not affect releases of Junos OS prior to 15.1R1.

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

Affected software

VendorProductVersions
Juniper NetworksJunos OS>= 15.1, < 15.1F6-S13, 15.1R7-S4; >= 16.1, < 16.1R7-S4; >= 16.2, < 16.2R2-S9; >= 17.1, < 17.1R2-S11, 17.1R3; >= 17.2, < 17.2R1-S9, 17.2R3-S2; >= 17.3, < 17.3R3-S3; >= 17.4, < 17.4R2-S2, 17.4R3; >= 18.1, < 18.1R3-S2; >= 18.2, < 18.2R3; >= 18.2X75, < 18.2X75-D40; >= 18.3, < 18.2R2-S6, 18.3R2; >= 18.4, < 18.4R1-S2, 18.4R2; >= 15.1X53, < 15.1X53-D238, 15.1X53-D496, 15.1X53-D592
Juniper NetworksJunos OS>= 15.1X49, < 15.1X49-D180

References

Timeline

Published
Jan 15, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

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CVE-2020-1601: High severity, CVSS 7.5 | Vulnix