CVE-2021-0298: Junos OS Evolved: PTX10003, PTX10008: picd core while executing the "show chassis pic" command under certain conditions

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-19 · updated 2026-06-17
Weakness: CWE-362

Description

A Race Condition in the 'show chassis pic' command in Juniper Networks Junos OS Evolved may allow an attacker to crash the port interface concentrator daemon (picd) process on the FPC, if the command is executed coincident with other system events outside the attacker's control, leading to a Denial of Service (DoS) condition. Continued execution of the CLI command, under precise conditions, could create a sustained Denial of Service (DoS) condition. This issue affects all Juniper Networks Junos OS Evolved versions prior to 20.1R2-EVO on PTX10003 and PTX10008 platforms. Junos OS is not affected by this vulnerability.

Affected products

Juniper Networks Junos OS Evolved: 18.3-r1, 19.1-r1, 19.1-r2, 19.2-r1, 19.2-r2, 19.3-r1 (+5)

References

Get alerted when CVE-2021-0298 or the next vulnerability affects your stack