Junos OS and Junos OS Evolved: Specific low privileged CLI command exposes sensitive information

published 2026-04-09 7 mo ago modified 2026-10-26 13 d ago also EUVD-2026-21196

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits: 0; none known

A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a local user with low privileges to read sensitive information.

A local user with low privileges can execute the CLI command 'show mgd' with specific arguments which will expose sensitive information.

This issue affects

Junos OS: * all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S6, * 23.4 versions before 23.4R2-S6, * 24.2 versions before 24.2R2-S4, * 24.4 versions before 24.4R2-S1, * 25.2 version before 25.2R1-S2, 25.2R2;

Junos OS Evolved: * all versions before 23.2R2-S6-EVO, * 23.4 version before 23.4R2-S6-EVO, * 24.2 version before 24.2R2-S4-EVO, * 24.4 versions before 24.4R2-S1-EVO, * 25.2 versions before 25.2R2-EVO.

Patch / fix

fixed in 2

Juniper Networks Junos OS 22.4R3-S8, 23.2R2-S6, 23.4R2-S6, 24.2R2-S4, 24.4R2-S1, 25.2R1-S2, 25.2R2
Juniper Networks Junos OS Evolved 23.2R2-S6-EVO, 23.4R2-S6-EVO, 24.2R2-S4-EVO, 24.4R2-S1-EVO, 25.2R2-EVO

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-10)

Exploit prediction

0.10% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/RE:M
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:M/U:X

Affected products

Juniper Networks Junos OS
Juniper Networks Junos OS Evolved

Classification

Weakness

CWE-862 Missing Authorization

References

kb.juniper.net /JSA107866
vendor-advisory, mitigation

Sources

CVE List CVE-2026-33776
NVD CVE-2026-33776

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary