CVE-2026-33785

Managed-device compromise via unrestricted request csds commands

Published Apr 9, 2026 · Updated Apr 9, 2026

Missing authorization in Junos OS on MX Series 24.4 and 25.2 allows local users to compromise managed devices through the CLI. The request csds operational-command path fails to enforce its intended high-privilege or JDM/CSDS authorization boundary and accepts commands from any logged-in account. The MX device must have chassis jnu-management configured; a low-privilege authenticated account then gains commands that affect every aspect of devices managed through that MX.

CVSS severity8.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Junos OS on MX Series 24.4 and 25.2 allows local users to compromise managed devices through the CLI. The request csds operational-command path fails to enforce its intended high-privilege or JDM/CSDS authorization boundary and accepts commands from any logged-in account. The MX device must have chassis jnu-management configured; a low-privilege authenticated account then gains commands that affect every aspect of devices managed through that MX.

The record

CVE
CVE-2026-33785
Published
Apr 9, 2026
Updated
Apr 9, 2026
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-862, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=24.4 <24.4R2-S3
  2. Affected versionversion=25.2 <25.2R2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OSversion=24.4 <24.4R2-S3; version=25.2 <25.2R2

Published CVSS scores

6.3Juniper NetworksCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
8.8Juniper NetworksCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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