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CVE-2026-33776Junos OS and Junos OS Evolved: Specific low privileged CLI command exposes sensitive information

Description

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.

Timeline

  1. ID reserved

    By juniper

  2. · 17 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-33776, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)4.0Medium6.8CVSS: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
juniperCNA (assigner)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Analyzed4.0Medium6.8CVSS: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
EPSS (exploitation in 30 days)
0.10% · top 99% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.

Affected products

  • Juniper Networks · Junos OS

    • affected < 22.4R3-S8
    • affected 23.2 – < 23.2R2-S6
    • affected 23.4 – < 23.4R2-S6
    • affected 24.2 – < 24.2R2-S4
    • affected 24.4 – < 24.4R2-S1
    • affected 25.2 – < 25.2R1-S2, 25.2R2

  • Juniper Networks · Junos OS Evolved

    • affected < 23.2R2-S6-EVO
    • affected 23.4 – < 23.4R2-S6-EVO
    • affected 24.2 – < 24.2R2-S4-EVO
    • affected 24.4 – < 24.4R2-S1-EVO
    • affected 25.2 – < 25.2R2-EVO

What to do

Solution: The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 23.2R2-S6-EVO, 23.4R2-S6-EVO, 24.2R2-S4-EVO, 24.4R2-S1-EVO, 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases; Junos OS: 22.4R3-S8, 23.2R2-S6, 23.4R2-S6, 24.2R2-S4, 24.4R2-S1, 25.2R1-S2, 25.2R2, 25.4R1, and all subsequent releases.

Workaround: Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators. Utilize CLI authorization to disallow execution of the 'show mgd' commands.

Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .