CVE-2026-33802

Traffic interruption via unchecked privileged CLI request

Published Jul 9, 2026 · Updated Jul 9, 2026

Missing authorization in the Junos OS CLI on affected EX Series releases allows local users to interrupt all traffic with a request command. The CLI authorization path accepts a privileged request command from any authenticated account without checking its permission class. No specific permissions or login class are required, and the switch automatically restores traffic after the interruption.

CVSS severity6.8
Medium
EPSS probability0.12%
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 the Junos OS CLI on affected EX Series releases allows local users to interrupt all traffic with a request command. The CLI authorization path accepts a privileged request command from any authenticated account without checking its permission class. No specific permissions or login class are required, and the switch automatically restores traffic after the interruption.

The record

CVE
CVE-2026-33802
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-862, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 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=23.2R2 <23.2R2-S6
  2. Affected versionversion=23.4 <23.4R2-S8
  3. Affected versionversion=24.2 <24.2R2-S4
  4. Affected versionversion=24.4 <24.4R2-S3
  5. Affected versionversion=25.2 <25.2R2
  6. Affected versionversion=25.4 <25.4R1-S1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OSversion=23.2R2 <23.2R2-S6; version=23.4 <23.4R2-S8; version=24.2 <24.2R2-S4; version=24.4 <24.4R2-S3; version=25.2 <25.2R2; version=25.4 <25.4R1-S1

Published CVSS scores

5.5Juniper NetworksCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8Juniper NetworksCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

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
T1499.004Application or System Exploitation

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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