Junos OS Evolved: The ssh CLI command always runs as root which can lead to privilege escalation

published 2022-10-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-27386

cvss: 8.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits: 0; none known

An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Networks Junos OS Evolved allows a locally authenticated attacker with low privileges to escalate their privileges on the device and potentially remote systems. This vulnerability allows a locally authenticated attacker with access to the ssh operational command to escalate their privileges on the system to root, or if there is user interaction on the local device to potentially escalate privileges on a remote system to root. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.1-EVO versions prior to 21.1R3-EVO; 21.2-EVO versions prior to 21.2R2-S1-EVO, 21.2R3-EVO; 21.3-EVO versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.

Patch / fix

fixed in 1

Juniper Networks Junos OS Evolved 20.4R3-S5-EVO, 21.1R3-EVO, 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 18 mo ago (2025-05-10)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.2	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Juniper Networks Junos OS Evolved

Classification

Weakness

CWE-250 Execution with Unnecessary Privileges
CWE-269 Improper Privilege Management

References

kb.juniper.net /JSA69895
vendor-advisory

Sources

CVE List CVE-2022-22239
NVD CVE-2022-22239

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Summary